diff --git a/scripts/course/courses/01.json b/scripts/course/courses/01.json
index bad1535e9..ee6e34f82 100644
--- a/scripts/course/courses/01.json
+++ b/scripts/course/courses/01.json
@@ -151,7 +151,7 @@
 	},
 	{
 		"chinese": "不想",
-		"english": "don ́t want",
+		"english": "don't want",
 		"soundmark": "/dont/ /wɑnt/"
 	},
 	{
@@ -221,7 +221,7 @@
 	},
 	{
 		"chinese": "不想",
-		"english": "don ́t want",
+		"english": "don't want",
 		"soundmark": "/dont/ /wɑnt/"
 	},
 	{
diff --git a/scripts/course/courses/02.json b/scripts/course/courses/02.json
index 6ec28daf9..c14a3e34f 100644
--- a/scripts/course/courses/02.json
+++ b/scripts/course/courses/02.json
@@ -126,7 +126,7 @@
 	},
 	{
 		"chinese": "星荣",
-		"english": "",
+		"english": "Xingrong",
 		"soundmark": "/Xingrong/"
 	},
 	{
diff --git a/scripts/course/courses/06.json b/scripts/course/courses/06.json
index 74553842d..7d9dd7507 100644
--- a/scripts/course/courses/06.json
+++ b/scripts/course/courses/06.json
@@ -346,7 +346,7 @@
 	},
 	{
 		"chinese": "我们想要尽快知道问题的答案",
-		"english": "we want to know the asnwer to the question as soon as possible",
+		"english": "we want to know the answer to the question as soon as possible",
 		"soundmark": "/wi/ /wɑnt/ /tə/ /no/ /ði/ /'ænsɚ/ /tə/ /ðə/ /'kwɛstʃən/ /əz/ /sun/ /əz/ /'pɑsəbl/"
 	},
 	{
@@ -909,4 +909,4 @@
 		"english": "I think you should know the reason why we don't want to eat the food from the restaurant",
 		"soundmark": "/aɪ/ /θɪŋk/ /ju/ /ʃʊd/ /no/ /ðə/ /ˈrizən/ /waɪ/ /wi/ /dont/ /wɑnt/ /tə/ /it/ /ðə/ /fud/ /frʌm/ /ðə/ /'rɛstrɑnt/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/07.json b/scripts/course/courses/07.json
index 29250f605..a954bd3b9 100644
--- a/scripts/course/courses/07.json
+++ b/scripts/course/courses/07.json
@@ -430,7 +430,7 @@
 		"soundmark": "/ʃi/ /ˈdʌznt/ /plæn/ /tə/ /liv/ /ðə/ /'kʌntri/ /nɛkst/ /mʌnθ/"
 	},
 	{
-		"chinese": "我们打算和他一起待在这里",
+		"chinese": "我们打算",
 		"english": "we plan",
 		"soundmark": "/wi/ /plæn/"
 	},
diff --git a/scripts/course/courses/10.json b/scripts/course/courses/10.json
index 237ce6e90..4f5fd59a9 100644
--- a/scripts/course/courses/10.json
+++ b/scripts/course/courses/10.json
@@ -76,7 +76,7 @@
 	},
 	{
 		"chinese": "我不想教你任何重要的东西",
-		"english": "I don ́t want to teach you anything important",
+		"english": "I don't want to teach you anything important",
 		"soundmark": "/aɪ/ /wɑnt/ /tə/ /titʃ/ /ju/ /'ɛnɪθɪŋ/ /ɪm'pɔrtnt/"
 	},
 	{
@@ -86,7 +86,7 @@
 	},
 	{
 		"chinese": "我想要教你一堂课",
-		"english": "（我想要给你上一课） I want to teach you a lesson",
+		"english": "I want to teach you a lesson",
 		"soundmark": "/aɪ/ /wɑnt/ /tə/ /titʃ/ /ju/ /ə/ /'lɛsn/"
 	},
 	{
@@ -106,7 +106,7 @@
 	},
 	{
 		"chinese": "你必须教他一堂课",
-		"english": "（你必须给他上一课） you have to teach him a lesson",
+		"english": "you have to teach him a lesson",
 		"soundmark": "/ju/ /hæv/ /tə/ /titʃ/ /hɪm/ /ə/ /'lɛsn/"
 	},
 	{
@@ -146,7 +146,7 @@
 	},
 	{
 		"chinese": "你不必教我如何使用字典",
-		"english": "you don ́t have to teach me how to use the dictionary",
+		"english": "you don't have to teach me how to use the dictionary",
 		"soundmark": "/ju/ /dont/ /hæv/ /tə/ /titʃ/ /mi/ /haʊ/ /tə/ /juz/ /ðə/ /'dɪkʃənɛri/"
 	},
 	{
@@ -171,7 +171,7 @@
 	},
 	{
 		"chinese": "你不必教我如何使用网络",
-		"english": "you don ́t have to teach me how to use the internet",
+		"english": "you don't have to teach me how to use the internet",
 		"soundmark": "/ju/ /dont/ /hæv/ /tə/ /titʃ/ /mi/ /haʊ/ /tə/ /juz/ /ði/ /ˈɪntərnɛt/"
 	},
 	{
@@ -196,7 +196,7 @@
 	},
 	{
 		"chinese": "你不需要教我如何做饭",
-		"english": "you don ́t need to teach me how to cook",
+		"english": "you don't need to teach me how to cook",
 		"soundmark": "/ju/ /dont/ /nid/ /tə/ /titʃ/ /mi/ /haʊ/ /tə/ /kʊk/"
 	},
 	{
@@ -291,7 +291,7 @@
 	},
 	{
 		"chinese": "我不想展示给你任何东西",
-		"english": "I don ́t want to show you anything",
+		"english": "I don't want to show you anything",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /ʃo/ /ju/ /'ɛnɪθɪŋ/"
 	},
 	{
@@ -366,7 +366,7 @@
 	},
 	{
 		"chinese": "你不必展示给我们如何做这件事",
-		"english": "you don ́t need to show us how to do it",
+		"english": "you don't need to show us how to do it",
 		"soundmark": "/ju/ /dont/ /nid/ /tə/ /ʃo/ /ʌs/ /haʊ/ /tə/ /du/ /ɪt/"
 	},
 	{
@@ -406,7 +406,7 @@
 	},
 	{
 		"chinese": "你不必展示给我你的新房子",
-		"english": "you don ́t have to show me your new house",
+		"english": "you don't have to show me your new house",
 		"soundmark": "/ju/ /dont/ /hæv/ /tə/ /ʃo/ /mi/ /jʊr/ /nu/ /haʊs/"
 	},
 	{
@@ -561,7 +561,7 @@
 	},
 	{
 		"chinese": "我不想让你去外面",
-		"english": "I don ́t want to let you go out",
+		"english": "I don't want to let you go out",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /lɛt/ /ju/ /ɡo/ /aʊt/"
 	},
 	{
@@ -571,7 +571,7 @@
 	},
 	{
 		"chinese": "我不想让你在晚上去外面",
-		"english": "I don ́t want to let you go out at night",
+		"english": "I don't want to let you go out at night",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /lɛt/ /ju/ /ɡo/ /aʊt/ /ət/ /naɪt/"
 	},
 	{
@@ -601,7 +601,7 @@
 	},
 	{
 		"chinese": "我不想让你在晚上去外面因为这件事是非常危险的",
-		"english": "I don ́t want to let you go out at night because it is very dangerous",
+		"english": "I don't want to let you go out at night because it is very dangerous",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /lɛt/ /ju/ /ɡo/ /aʊt/ /ət/ /naɪt/ /bɪ'kɔz/ /ɪt/ /ɪz/ /ˈvɛri/ /'dendʒərəs/"
 	},
 	{
@@ -641,7 +641,7 @@
 	},
 	{
 		"chinese": "我不想让你在晚上去外面因为这件事是非常危险的而且我需要你待在这里",
-		"english": "I don ́t want to let you go out at night because it is very dangerous and I need you to stay here",
+		"english": "I don't want to let you go out at night because it is very dangerous and I need you to stay here",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /lɛt/ /ju/ /ɡo/ /aʊt/ /ət/ /naɪt/ /bɪ'kɔz/ /ɪt/ /ɪz/ /ˈvɛri/ /'dendʒərəs/ /ənd/ /aɪ/ /nid/ /tə/ /ste/ /hɪr/"
 	},
 	{
@@ -954,4 +954,4 @@
 		"english": "let me see your hands",
 		"soundmark": "/lɛt/ /mi/ /si/ /jʊr/ /hændz/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/11.json b/scripts/course/courses/11.json
index 6e3b18756..8a45c32f2 100644
--- a/scripts/course/courses/11.json
+++ b/scripts/course/courses/11.json
@@ -376,7 +376,7 @@
 	},
 	{
 		"chinese": "你不告诉我",
-		"english": "you don ́t tell me",
+		"english": "you don't tell me",
 		"soundmark": "/ju/ /dont/ /tɛl/ /mi/"
 	},
 	{
@@ -665,8 +665,8 @@
 		"soundmark": "/wɛn/ /ʃi/ /wəz/ /jʌŋ/"
 	},
 	{
-		"chinese": "她（过去）想要改变世界当她",
-		"english": "（过去）是年轻的时候 she wanted to change the world when she was young",
+		"chinese": "她（过去）想要改变世界当她（过去）是年轻的时候",
+		"english": "she wanted to change the world when she was young",
 		"soundmark": "/ʃi/ /wɑntɪd/ /tə/ /tʃendʒ/ /ðə/ /wɝld/ /wɛn/ /ʃi/ /wəz/ /jʌŋ/"
 	},
 	{
@@ -680,8 +680,8 @@
 		"soundmark": "/ʃi/ /told/ /mi/ /ʃi/ /wɑntɪd/ /tə/ /tʃendʒ/ /ðə/ /wɝld/ /wɛn/ /ʃi/ /wəz/ /jʌŋ/"
 	},
 	{
-		"chinese": "我上周末和她聊过天而且她告诉我她（想要）改变世界当她",
-		"english": "（过去）是年轻的时候 I talked with her last weekend and she told me she wanted to change the world when she was young",
+		"chinese": "我上周末和她聊过天而且她告诉我她（想要）改变世界当她（过去）是年轻的时候",
+		"english": "I talked with her last weekend and she told me she wanted to change the world when she was young",
 		"soundmark": "/aɪ/ /tɔkt/ /wɪð/ /hɚ/ /læst/ /'wikɛnd/ /ənd/ /ʃi/ /told/ /mi/ /ʃi/ /wɑntɪd/ /tə/ /tʃendʒ/ /ðə/ /wɝld/ /wɛn/ /ʃi/ /wəz/ /jʌŋ/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/14.json b/scripts/course/courses/14.json
index e6783c829..313aaba5f 100644
--- a/scripts/course/courses/14.json
+++ b/scripts/course/courses/14.json
@@ -156,13 +156,13 @@
 	},
 	{
 		"chinese": "我们昨天想要邀请她参加聚会",
-		"english": "we wanted to invite her to join the",
-		"soundmark": "/wi/ /wɑntɪd/ /tə/ /'ɪnvaɪt/ /hɚ/ /tə/ /dʒɔɪn/"
+		"english": "we wanted to invite her to join the party yesterday",
+		"soundmark": "/wi/ /wɑntɪd/ /tə/ /'ɪnvaɪt/ /hɚ/ /tə/ /dʒɔɪn/ /ðə/ /'pɑrti/ /'jɛstɚde/"
 	},
 	{
 		"chinese": "但是她（过去）不想加入我们",
-		"english": "party yesterday but she didn't want to join us",
-		"soundmark": "/ðə/ /'pɑrti/ /'jɛstɚde/ /bət/ /ʃi/ /ˈdɪdnt/ /wɑnt/ /tə/ /dʒɔɪn/ /ʌs/"
+		"english": "but she didn't want to join us",
+		"soundmark": "/bət/ /ʃi/ /ˈdɪdnt/ /wɑnt/ /tə/ /dʒɔɪn/ /ʌs/"
 	},
 	{
 		"chinese": "我们昨天不想邀请她参加聚会但是她真的（过去）想要加入我们",
@@ -475,7 +475,7 @@
 		"soundmark": "/aɪ/ /dʒʌst/ /wɑnt/ /tə/ /'fɪnɪʃ/ /maɪ/ /wɝk/ /（过去）想要 wanted/ /wɑntɪd/"
 	},
 	{
-		"chinese": "我只是（过去）想要完成我的",
+		"chinese": "我只是（过去）想要完成我的工作",
 		"english": "I just wanted to finish my work",
 		"soundmark": "/aɪ/ /dʒʌst/ /wɑntɪd/ /tə/ /'fɪnɪʃ/ /maɪ/ /wɝk/"
 	},
@@ -640,14 +640,9 @@
 		"soundmark": "/aɪ/ /wɑntɪd/ /tə/ /wɔtʃ/ /ə/ /'muvi/ /læst/ /'wikɛnd/"
 	},
 	{
-		"chinese": "我上周末想看一个电影但是我（过去）没有足够的时",
-		"english": "I wanted to watch a movie last weekend but I didn't have enough",
-		"soundmark": "/aɪ/ /wɑntɪd/ /tə/ /wɔtʃ/ /ə/ /'muvi/ /læst/ /'wikɛnd/ /bət/ /aɪ/ /ˈdɪdnt/ /hæv/ /ɪ'nʌf/"
-	},
-	{
-		"chinese": "间",
-		"english": "time",
-		"soundmark": "/taɪm/"
+		"chinese": "我上周末想看一个电影但是我（过去）没有足够的时间",
+		"english": "I wanted to watch a movie last weekend but I didn't have enough time",
+		"soundmark": "/aɪ/ /wɑntɪd/ /tə/ /wɔtʃ/ /ə/ /'muvi/ /læst/ /'wikɛnd/ /bət/ /aɪ/ /ˈdɪdnt/ /hæv/ /ɪ'nʌf/ /taɪm/"
 	},
 	{
 		"chinese": "完成",
diff --git a/scripts/course/courses/15.5.json b/scripts/course/courses/15.5.json
index f9e9d7a7b..210f836cb 100644
--- a/scripts/course/courses/15.5.json
+++ b/scripts/course/courses/15.5.json
@@ -141,8 +141,8 @@
 	},
 	{
 		"chinese": "茶",
-		"english": "（they，过去时）be were",
-		"soundmark": "/wɚ/"
+		"english": "tea",
+		"soundmark": "/tiː/"
 	},
 	{
 		"chinese": "他们在花园里（过去）正在喝茶",
@@ -904,4 +904,4 @@
 		"english": "master masters",
 		"soundmark": "/mastered/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/15.json b/scripts/course/courses/15.json
index c1995fce1..e901b4c4a 100644
--- a/scripts/course/courses/15.json
+++ b/scripts/course/courses/15.json
@@ -440,8 +440,8 @@
 		"soundmark": "/ɪn/ /ə/ /de/"
 	},
 	{
-		"chinese": "在一天内完成这个工作",
-		"english": "（它）是困难的 it is difficult to finish the work in a day",
+		"chinese": "在一天内完成这个工作（它）是困难的",
+		"english": "it is difficult to finish the work in a day",
 		"soundmark": "/ɪt/ /ɪz/ /'dɪfɪkəlt/ /tə/ /'fɪnɪʃ/ /ðə/ /wɝk/ /ɪn/ /ə/ /de/"
 	},
 	{
@@ -495,8 +495,8 @@
 		"soundmark": "/aɪ/ /θɪŋk/ /ɪt/ /ɪz/ /'dendʒərəs/ /tə/ /swɪm/ /ɪn/ /ðə/ /si/"
 	},
 	{
-		"chinese": "我不认为在大海里游泳",
-		"english": "（它）是危险的 I don't think it is dangerous to swim in the sea",
+		"chinese": "我不认为在大海里游泳（它）是危险的",
+		"english": "I don't think it is dangerous to swim in the sea",
 		"soundmark": "/aɪ/ /dont/ /θɪŋk/ /ɪt/ /ɪz/ /'dendʒərəs/ /tə/ /swɪm/ /ɪn/ /ðə/ /si/"
 	},
 	{
@@ -675,14 +675,9 @@
 		"soundmark": "/ənd/"
 	},
 	{
-		"chinese": "而且我知道我将会在不远的",
-		"english": "and I know I will master english",
-		"soundmark": "/ənd/ /aɪ/ /no/ /aɪ/ /wɪl/ /'mæstɚ/ /ˈɪŋɡlɪʃ/"
-	},
-	{
-		"chinese": "将来掌握英语",
-		"english": "in the near future",
-		"soundmark": "/ɪn/ /ðə/ /nɪr/ /'fjʊtʃɚ/"
+		"chinese": "而且我知道我将会在不远的将来掌握英语",
+		"english": "and I know I will master english in the near future",
+		"soundmark": "/ənd/ /aɪ/ /no/ /aɪ/ /wɪl/ /'mæstɚ/ /ˈɪŋɡlɪʃ/ /ɪn/ /ðə/ /nɪr/ /'fjʊtʃɚ/"
 	},
 	{
 		"chinese": "英语不是一个大的挑战对我来说",
@@ -1019,4 +1014,4 @@
 		"english": "master masters",
 		"soundmark": "/mastered/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/16.json b/scripts/course/courses/16.json
index 8d9151d30..0b3bbc3c8 100644
--- a/scripts/course/courses/16.json
+++ b/scripts/course/courses/16.json
@@ -155,7 +155,7 @@
 		"soundmark": "/'dɔtɚ/"
 	},
 	{
-		"chinese": "的",
+		"chinese": "我的",
 		"english": "my",
 		"soundmark": "/maɪ/"
 	},
@@ -181,7 +181,7 @@
 	},
 	{
 		"chinese": "我的女儿（过去）正在做她的家庭作业",
-		"english": "my daugher was doing her homework",
+		"english": "my daughter was doing her homework",
 		"soundmark": "/maɪ/ /'dɔtɚ/ /wəz/ /ˈduɪŋ/ /hɚ/ /'homwɝk/"
 	},
 	{
@@ -321,7 +321,7 @@
 	},
 	{
 		"chinese": "她此刻正在游泳池里游泳",
-		"english": "she is swimming in the pool at the",
+		"english": "she is swimming in the pool at the moment",
 		"soundmark": "/ʃi/ /ɪz/ /'swɪmɪŋ/ /ɪn/ /ðə/ /pul/ /æt/ /ðə/ /moment/ /'momənt/ /（she，过去时）be was/ /wəz/"
 	},
 	{
@@ -1054,4 +1054,4 @@
 		"english": "master masters",
 		"soundmark": "/mastered/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/17.json b/scripts/course/courses/17.json
index b0c8a15de..3596fedf3 100644
--- a/scripts/course/courses/17.json
+++ b/scripts/course/courses/17.json
@@ -640,7 +640,7 @@
 		"soundmark": "/tə/ /æsk/ /mi/ /ðæt/ /'kwɛstʃən/"
 	},
 	{
-		"chinese": "我(现在)正在等你问我那个",
+		"chinese": "我(现在)正在等你问我",
 		"english": "I am waiting for you to ask me",
 		"soundmark": "/aɪ/ /æm/ /'wetɪŋ/ /fɝ/ /ju/ /tə/ /æsk/ /mi/"
 	},
@@ -999,4 +999,4 @@
 		"english": "wait waits",
 		"soundmark": "/waited/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/18.json b/scripts/course/courses/18.json
index 714af6cba..2a91a7515 100644
--- a/scripts/course/courses/18.json
+++ b/scripts/course/courses/18.json
@@ -270,14 +270,9 @@
 		"soundmark": "/ət/ /ðɪs/ /taɪm/ /'jɛstɚde/"
 	},
 	{
-		"chinese": "他在昨天这个时候没有正在注",
-		"english": "he was not paying attention to",
-		"soundmark": "/hi/ /wəz/ /nɑt/ /peɪŋ/ /ə'tɛnʃən/ /tə/ /ðɪs/"
-	},
-	{
-		"chinese": "意这个信息",
-		"english": "this information at this time yesterday",
-		"soundmark": "/ɪnfɚ'meʃən/ /ət/ /ðɪs/ /taɪm/ /'jɛstɚde/"
+		"chinese": "他在昨天这个时候没有注意到这个信息",
+		"english": "he was not paying attention to this information at this time yesterday",
+		"soundmark": "/hi/ /wəz/ /nɑt/ /peɪŋ/ /ə'tɛnʃən/ /tə/ /ðɪs/ /ɪnfɚ'meʃən/ /ət/ /ðɪs/ /taɪm/ /'jɛstɚde/"
 	},
 	{
 		"chinese": "是；赋值(原型)",
diff --git a/scripts/course/courses/19.json b/scripts/course/courses/19.json
index 296a6cda6..08063ad0b 100644
--- a/scripts/course/courses/19.json
+++ b/scripts/course/courses/19.json
@@ -385,8 +385,8 @@
 		"soundmark": "/aɪ/ /æm/ /'traɪɪŋ/ /tə/ /sɑlv/ /ðə/ /'prɑbləm/"
 	},
 	{
-		"chinese": "我(现在)正在尝试解决我们",
-		"english": "(现在)正在面对的这个麻烦 I am trying to solve the problem we are facing",
+		"chinese": "我(现在)正在尝试解决我们面对的这个麻烦",
+		"english": "I am trying to solve the problem we are facing",
 		"soundmark": "/aɪ/ /æm/ /'traɪɪŋ/ /tə/ /sɑlv/ /ðə/ /'prɑbləm/ /wi/ /ɚ/ /'fesɪŋ/"
 	},
 	{
@@ -699,4 +699,4 @@
 		"english": "he is wondering how we will solve the problem together",
 		"soundmark": "/hi/ /ɪz/ /'wʌndərɪŋ/ /haʊ/ /wi/ /wɪl/ /sɑlv/ /ðə/ /'prɑbləm/ /tə'ɡɛðɚ/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/20.5.json b/scripts/course/courses/20.5.json
index ae30f95aa..38eaf4b51 100644
--- a/scripts/course/courses/20.5.json
+++ b/scripts/course/courses/20.5.json
@@ -361,7 +361,7 @@
 	},
 	{
 		"chinese": "我(过去)正在寻找我的钥匙但是我(过去)不能找到我的钥匙",
-		"english": "I was looking for my keys, but I couldn't find my keys",
+		"english": "I was looking for my keys but I couldn't find my keys",
 		"soundmark": "/aɪ/ /wəz/ /stɪl/ /ˈlʊkɪŋ/ /fɝ/ /maɪ/ /kiz/ /bʌt/ /aɪ/ /kʊdnt/ /faɪnd/ /maɪ/ /kiz/"
 	},
 	{
@@ -541,7 +541,7 @@
 	},
 	{
 		"chinese": "我(过去)听说你(过去)正在寻找我但是我(过去)不是你(过去)正在寻找的那个人",
-		"english": "I heard you were looking for me, but I was not the person you were looking for",
+		"english": "I heard you were looking for me but I was not the person you were looking for",
 		"soundmark": "/aɪ/ /hɚd/ /ju/ /wɚ/ /ˈlʊkɪŋ/ /fɝ/ /mi/ /bʌt/ /aɪ/ /wəz/ /nɑt/ /ðə/ /'pɝsn/ /ju/ /wɚ/ /ˈlʊkɪŋ/ /fɝ/"
 	}
 ]
\ No newline at end of file
diff --git a/scripts/course/courses/20.json b/scripts/course/courses/20.json
index 6a436101b..14e80cfd6 100644
--- a/scripts/course/courses/20.json
+++ b/scripts/course/courses/20.json
@@ -351,12 +351,12 @@
 	},
 	{
 		"chinese": "你可以递给我我的手机吗？",
-		"english": "can you hand me my phone?",
+		"english": "can you hand me my phone",
 		"soundmark": "/kən/ /ju/ /hænd/ /mi/ /maɪ/ /fon/"
 	},
 	{
 		"chinese": "你可以......吗？",
-		"english": "can you?",
+		"english": "can you",
 		"soundmark": "/kən/ /ju/"
 	},
 	{
@@ -376,7 +376,7 @@
 	},
 	{
 		"chinese": "你可以递给我一个香蕉吗？",
-		"english": "can you hand me a banana?",
+		"english": "can you hand me a banana",
 		"soundmark": "/kən/ /ju/ /hænd/ /mi/ /ə/ /bə'nænə/"
 	},
 	{
@@ -386,12 +386,12 @@
 	},
 	{
 		"chinese": "你可以麻烦一下递给我我的手机吗？",
-		"english": "can you please hand me my phone?",
+		"english": "can you please hand me my phone",
 		"soundmark": "/kən/ /ju/ /pliz/ /hænd/ /mi/ /maɪ/ /fon/"
 	},
 	{
 		"chinese": "你可以麻烦一下......吗？",
-		"english": "can you please?",
+		"english": "can you please",
 		"soundmark": "/kən/ /ju/ /pliz/"
 	},
 	{
@@ -401,7 +401,7 @@
 	},
 	{
 		"chinese": "你可以麻烦一下递给我一个香蕉吗？",
-		"english": "can you please hand me a banana?",
+		"english": "can you please hand me a banana",
 		"soundmark": "/kən/ /ju/ /pliz/ /hænd/ /mi/ /ə/ /bə'nænə/"
 	},
 	{
@@ -416,17 +416,17 @@
 	},
 	{
 		"chinese": "你可以麻烦一下递给我一个香蕉吗？",
-		"english": "can you please hand me a banana?",
+		"english": "can you please hand me a banana",
 		"soundmark": "/kən/ /ju/ /pliz/ /hænd/ /mi/ /ə/ /bə'nænə/"
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下递给我一个香蕉吗？",
-		"english": "could you please hand me a banana?",
+		"english": "could you please hand me a banana",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /hænd/ /mi/ /ə/ /bə'nænə/"
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
@@ -436,12 +436,12 @@
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下递给我我的手机吗？",
-		"english": "could you please hand me my phone?",
+		"english": "could you please hand me my phone",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /hænd/ /mi/ /maɪ/ /fon/"
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
@@ -451,12 +451,12 @@
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下递给我我的书包吗？",
-		"english": "could you please hand me my school bag?",
+		"english": "could you please hand me my school bag",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /hænd/ /mi/ /maɪ/ /skul/ /bæɡ/"
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
@@ -471,7 +471,7 @@
 	},
 	{
 		"chinese": "你可以（礼貌版）麻烦一下帮助我吗？",
-		"english": "could you please help me?",
+		"english": "could you please help me",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /hɛlp/ /mi/"
 	},
 	{
@@ -501,12 +501,12 @@
 	},
 	{
 		"chinese": "请问你可以......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
 		"chinese": "请问你可以告诉我真相吗？",
-		"english": "could you please tell me the truth?",
+		"english": "could you please tell me the truth",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /tɛl/ /mi/ /ðə/ /trʊθ/"
 	},
 	{
@@ -536,12 +536,12 @@
 	},
 	{
 		"chinese": "请问你可以......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
 		"chinese": "请问你可以走开别烦我吗？",
-		"english": "could you please leave me alone?",
+		"english": "could you please leave me alone",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /tə/ /liv/ /mi/ /ə'lon/"
 	},
 	{
@@ -571,12 +571,12 @@
 	},
 	{
 		"chinese": "请问你可以......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
 		"chinese": "请问你可以今晚打电话给我吗？",
-		"english": "could you please call me tonight?",
+		"english": "could you please call me tonight",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /kɔl/ /mi/ /tə'naɪt/"
 	},
 	{
@@ -611,12 +611,12 @@
 	},
 	{
 		"chinese": "请问你可以......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
 		"chinese": "请问你可以给我帮把手吗？",
-		"english": "could you please give me a hand?",
+		"english": "could you please give me a hand",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /ɡɪv/ /mi/ /ə/ /hænd/"
 	},
 	{
@@ -636,12 +636,12 @@
 	},
 	{
 		"chinese": "请问你可以......吗？",
-		"english": "could you please?",
+		"english": "could you please",
 		"soundmark": "/kʊd/ /ju/ /pliz/"
 	},
 	{
 		"chinese": "请问你可以打开门吗",
-		"english": "could you please open the door?",
+		"english": "could you please open the door",
 		"soundmark": "/kʊd/ /ju/ /pliz/ /'opən/ /ðə/ /dɔr/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/21.json b/scripts/course/courses/21.json
index eb970f3cd..6bd9b8ce1 100644
--- a/scripts/course/courses/21.json
+++ b/scripts/course/courses/21.json
@@ -491,7 +491,7 @@
 	},
 	{
 		"chinese": "你可以听见我吗？",
-		"english": "can you hear me?",
+		"english": "can you hear me",
 		"soundmark": "/kæn/ /ju/ /hɪr/ /mi/"
 	},
 	{
diff --git a/scripts/course/courses/22.json b/scripts/course/courses/22.json
index bf1b4f8d7..77e7946a5 100644
--- a/scripts/course/courses/22.json
+++ b/scripts/course/courses/22.json
@@ -36,7 +36,7 @@
 	},
 	{
 		"chinese": "你可以听见我吗？",
-		"english": "can you hear me?",
+		"english": "can you hear me",
 		"soundmark": "/kæn/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -56,7 +56,7 @@
 	},
 	{
 		"chinese": "你不可以听见我吗？",
-		"english": "can't you hear me?",
+		"english": "can't you hear me",
 		"soundmark": "/kænt/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -81,7 +81,7 @@
 	},
 	{
 		"chinese": "你没有听见我吗？",
-		"english": "don't you hear me?",
+		"english": "don't you hear me",
 		"soundmark": "/dont/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -96,7 +96,7 @@
 	},
 	{
 		"chinese": "你有听见我吗？",
-		"english": "do you hear me?",
+		"english": "do you hear me",
 		"soundmark": "/du/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -111,7 +111,7 @@
 	},
 	{
 		"chinese": "你可以听见我吗？",
-		"english": "can you hear me?",
+		"english": "can you hear me",
 		"soundmark": "/kæn/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -121,12 +121,12 @@
 	},
 	{
 		"chinese": "你有听见我吗？",
-		"english": "do you hear me?",
+		"english": "do you hear me",
 		"soundmark": "/du/ /ju/ /hɪr/ /mi/ /do过去式 did/ /dɪd/"
 	},
 	{
 		"chinese": "你(过去)有听见我吗？",
-		"english": "did you hear me?",
+		"english": "did you hear me",
 		"soundmark": "/dɪd/ /ju/ /hɪr/ /mi/"
 	},
 	{
@@ -186,7 +186,7 @@
 	},
 	{
 		"chinese": "你(过去)有做这件事吗？",
-		"english": "did you do it?",
+		"english": "did you do it",
 		"soundmark": "/dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -221,7 +221,7 @@
 	},
 	{
 		"chinese": "你(过去)如何做这件事？",
-		"english": "how did you do it?",
+		"english": "how did you do it",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -231,7 +231,7 @@
 	},
 	{
 		"chinese": "你(过去)为什么做这件事？",
-		"english": "why did you do it?",
+		"english": "why did you do it",
 		"soundmark": "/waɪ/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -241,7 +241,7 @@
 	},
 	{
 		"chinese": "你(过去)什么时候做这件事？",
-		"english": "when did you do it?",
+		"english": "when did you do it",
 		"soundmark": "/wɛn/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -251,7 +251,7 @@
 	},
 	{
 		"chinese": "你(过去)在哪里做这件事？",
-		"english": "where did you do it?",
+		"english": "where did you do it",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -261,12 +261,12 @@
 	},
 	{
 		"chinese": "你(过去)有做这件事吗？",
-		"english": "did you do it?",
+		"english": "did you do it",
 		"soundmark": "/dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)做了什么？",
-		"english": "what did you do?",
+		"english": "what did you do",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /du/"
 	},
 	{
@@ -291,7 +291,7 @@
 	},
 	{
 		"chinese": "你(过去)是如何找到我的？",
-		"english": "how did you find me?",
+		"english": "how did you find me",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /faɪnd/ /mi/"
 	},
 	{
@@ -326,7 +326,7 @@
 	},
 	{
 		"chinese": "你(过去)是如何知道她的名字的？",
-		"english": "how did you know her name?",
+		"english": "how did you know her name",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /no/ /hɚ/ /nem/"
 	},
 	{
@@ -371,7 +371,7 @@
 	},
 	{
 		"chinese": "你(过去)是如何知道我的电话号码的？",
-		"english": "how did you know my phone number?",
+		"english": "how did you know my phone number",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /no/ /maɪ/ /fon/ /'nʌmbɚ/"
 	},
 	{
@@ -406,7 +406,7 @@
 	},
 	{
 		"chinese": "你(过去)为什么决定做这件事？",
-		"english": "why did you decide to do it?",
+		"english": "why did you decide to do it",
 		"soundmark": "/waɪ/ /dɪd/ /ju/ /dɪ'saɪd/ /tə/ /du/ /ɪt/"
 	},
 	{
@@ -431,7 +431,7 @@
 	},
 	{
 		"chinese": "你(过去)为什么离开我？",
-		"english": "why did you leave me?",
+		"english": "why did you leave me",
 		"soundmark": "/waɪ/ /dɪd/ /ju/ /liv/ /mi/"
 	},
 	{
@@ -456,7 +456,7 @@
 	},
 	{
 		"chinese": "你(过去)为什么说那句话？",
-		"english": "why did you say it?",
+		"english": "why did you say it",
 		"soundmark": "/waɪ/ /dɪd/ /ju/ /se/ /ɪt/"
 	},
 	{
@@ -481,7 +481,7 @@
 	},
 	{
 		"chinese": "你(过去)什么时候到达这里的？",
-		"english": "when did you get here?",
+		"english": "when did you get here",
 		"soundmark": "/wɛn/ /dɪd/ /ju/ /ɡɛt/ /hɪr/"
 	},
 	{
@@ -506,7 +506,7 @@
 	},
 	{
 		"chinese": "你(过去)什么时候见到他的？",
-		"english": "when did you meet him?",
+		"english": "when did you meet him",
 		"soundmark": "/wɛn/ /dɪd/ /ju/ /mit/ /hɪm/"
 	},
 	{
@@ -551,7 +551,7 @@
 	},
 	{
 		"chinese": "你(过去)什么时候完成你的家庭作业的？",
-		"english": "when did you finish your homework?",
+		"english": "when did you finish your homework",
 		"soundmark": "/wɛn/ /dɪd/ /ju/ /'fɪnɪʃ/ /jʊr/ /'homwɝk/"
 	},
 	{
@@ -576,7 +576,7 @@
 	},
 	{
 		"chinese": "你(过去)在哪里找到他们的？",
-		"english": "where did you find them?",
+		"english": "where did you find them",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /faɪnd/ /ðəm/"
 	},
 	{
@@ -601,7 +601,7 @@
 	},
 	{
 		"chinese": "你(过去)在哪里购买这个的？",
-		"english": "where did you buy this?",
+		"english": "where did you buy this",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /baɪ/ /ðɪs/"
 	},
 	{
@@ -616,7 +616,7 @@
 	},
 	{
 		"chinese": "你(过去)在哪里睡觉的？",
-		"english": "where did you sleep?",
+		"english": "where did you sleep",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /slip/"
 	},
 	{
@@ -636,7 +636,7 @@
 	},
 	{
 		"chinese": "你(过去)昨晚在哪里睡觉的？",
-		"english": "where did you sleep last night?",
+		"english": "where did you sleep last night",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /slip/ /læst/ /naɪt/"
 	},
 	{
@@ -651,7 +651,7 @@
 	},
 	{
 		"chinese": "你(过去)说了什么？",
-		"english": "what did you say?",
+		"english": "what did you say",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /se/"
 	},
 	{
@@ -666,7 +666,7 @@
 	},
 	{
 		"chinese": "你(过去)学到了什么？",
-		"english": "what did you learn?",
+		"english": "what did you learn",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /lɝn/"
 	},
 	{
@@ -681,7 +681,7 @@
 	},
 	{
 		"chinese": "你(过去)找到了什么？",
-		"english": "what did you find?",
+		"english": "what did you find",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /faɪnd/"
 	},
 	{
@@ -696,7 +696,7 @@
 	},
 	{
 		"chinese": "你(过去)听到了什么？",
-		"english": "what did you hear?",
+		"english": "what did you hear",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /hɪr/"
 	},
 	{
@@ -711,32 +711,32 @@
 	},
 	{
 		"chinese": "你(过去)看到了什么？",
-		"english": "what did you see?",
+		"english": "what did you see",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /si/"
 	},
 	{
 		"chinese": "你(过去)如何做这件事？",
-		"english": "how did you do it?",
+		"english": "how did you do it",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)为什么做这件事？",
-		"english": "why did you do it?",
+		"english": "why did you do it",
 		"soundmark": "/waɪ/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)什么时候做这件事？",
-		"english": "when did you do it?",
+		"english": "when did you do it",
 		"soundmark": "/wɛn/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)在哪里做这件事？",
-		"english": "where did you do it?",
+		"english": "where did you do it",
 		"soundmark": "/wɛr/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)做了什么？",
-		"english": "what did you do?",
+		"english": "what did you do",
 		"soundmark": "/wɑt/ /dɪd/ /ju/ /du/"
 	},
 	{
diff --git a/scripts/course/courses/25.5.json b/scripts/course/courses/25.5.json
index 28d641a51..5e7426547 100644
--- a/scripts/course/courses/25.5.json
+++ b/scripts/course/courses/25.5.json
@@ -66,7 +66,7 @@
 	},
 	{
 		"chinese": "一些建议",
-		"english": "some advie",
+		"english": "some advice",
 		"soundmark": "/səm/ /əd'vaɪs/"
 	},
 	{
@@ -106,7 +106,7 @@
 	},
 	{
 		"chinese": "你可以给我一些建议吗？",
-		"english": "can you give me some advice?",
+		"english": "can you give me some advice",
 		"soundmark": "/kæn/ /ju/ /ɡɪv/ /mi/ /səm/ /əd'vaɪs/"
 	},
 	{
@@ -196,7 +196,7 @@
 	},
 	{
 		"chinese": "你可以给我帮把手?",
-		"english": "can you give me a hand?",
+		"english": "can you give me a hand",
 		"soundmark": "/kæn/ /ju/ /ɡɪv/ /mi/ /ə/ /hænd/"
 	},
 	{
@@ -270,8 +270,8 @@
 		"soundmark": "/ju/ /kæn/ /hænd/ /mi/ /ðə/ /naɪf/"
 	},
 	{
-		"chinese": "你可以递给我那把刀吗？ can you hand me the knife？",
-		"english": "",
+		"chinese": "你可以递给我那把刀吗?",
+		"english": "can you hand me the knife",
 		"soundmark": "/kæn/ /ju/ /hænd/ /mi/ /ðə/ /naɪf/"
 	},
 	{
@@ -281,7 +281,7 @@
 	},
 	{
 		"chinese": "你可以（礼貌版）递给我那把刀吗？",
-		"english": "could you hand me the knife？",
+		"english": "could you hand me the knife",
 		"soundmark": "/kʊd/ /ju/ /hænd/ /mi/ /ðə/ /naɪf/"
 	},
 	{
@@ -736,7 +736,7 @@
 	},
 	{
 		"chinese": "你可以做给我一杯咖啡吗？",
-		"english": "can you make me a cup of coffee?",
+		"english": "can you make me a cup of coffee",
 		"soundmark": "/kæn/ /ju/ /mek/ /mi/ /ə/ /kʌp/ /əv/ /'kɔfi/"
 	},
 	{
@@ -751,7 +751,7 @@
 	},
 	{
 		"chinese": "你可以做给她一杯咖啡吗？",
-		"english": "can you make her a cup of coffee?",
+		"english": "can you make her a cup of coffee",
 		"soundmark": "/kæn/ /ju/ /mek/ /hɚ/ /ə/ /kʌp/ /əv/ /'kɔfi/"
 	},
 	{
@@ -761,7 +761,7 @@
 	},
 	{
 		"chinese": "你可以让她开心吗？",
-		"english": "can you make her happy?",
+		"english": "can you make her happy",
 		"soundmark": "/kæn/ /ju/ /mek/ /hɚ/ /'hæpi/"
 	},
 	{
diff --git a/scripts/course/courses/29.json b/scripts/course/courses/29.json
index e0806efe5..cc288256a 100644
--- a/scripts/course/courses/29.json
+++ b/scripts/course/courses/29.json
@@ -56,7 +56,7 @@
 	},
 	{
 		"chinese": "我不想在这里我想要去那里",
-		"english": "I don't want to be here, I want to be there",
+		"english": "I don't want to be here I want to be there",
 		"soundmark": "/aɪ/ /dont/ /wɑnt/ /tə/ /bi/ /hɪr/ /aɪ/ /wɑnt/ /tə/ /bi/ /ðɛr/"
 	},
 	{
@@ -80,13 +80,13 @@
 		"soundmark": "/aɪ/ /wɑnt/ /tə/ /bi/ /ðɛr/"
 	},
 	{
-		"chinese": "当我在这里的时候我想要去那里",
-		"english": "when I am here, I want to be there",
+		"chinese": "当我在这里的时候，我想要去那里",
+		"english": "when I am here I want to be there",
 		"soundmark": "/wɛn/ /aɪ/ /æm/ /hɪr/ /aɪ/ /wɑnt/ /tə/ /bi/ /ðɛr/"
 	},
 	{
-		"chinese": "当我(过去)在这里的时候我",
-		"english": "(过去)想要去那里 when I was here, I wanted to be there",
+		"chinese": "当我(过去)在这里的时候，我(过去)想要去那里",
+		"english": "when I was here I wanted to be there",
 		"soundmark": "/wɛn/ /aɪ/ /wəz/ /hɪr/ /aɪ/ /wɑntɪd/ /tə/ /bi/ /ðɛr/"
 	},
 	{
@@ -664,4 +664,4 @@
 		"english": "we need to teach our children how to tell the difference between right and wrong",
 		"soundmark": "/wi/ /nid/ /tə/ /titʃ/ /'aʊɚ/ /'tʃɪldrən/ /haʊ/ /tə/ /tɛl/ /ðə/ /'dɪfrəns/ /bɪ'twin/ /raɪt/ /ənd/ /rɔŋ/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/33.json b/scripts/course/courses/33.json
index 04fd9be1d..837b72f4a 100644
--- a/scripts/course/courses/33.json
+++ b/scripts/course/courses/33.json
@@ -56,7 +56,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -131,7 +131,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -186,7 +186,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -256,7 +256,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -336,7 +336,7 @@
 	},
 	{
 		"chinese": "我过去每天早上喝咖啡但是现在我更喜欢茶",
-		"english": "I used to drink coffee every morning, but now I prefer tea",
+		"english": "I used to drink coffee every morning but now I prefer tea",
 		"soundmark": "/aɪ/ /juzd/ /tə/ /drɪŋk/ /'kɔfi/ /'ɛvri/ /'mɔrnɪŋ/ /bʌt/ /naʊ/ /aɪ/ /prɪˈfɝ/ /ti/"
 	},
 	{
@@ -350,18 +350,18 @@
 		"soundmark": "/ʃi/ /ɪz/ /ə/ /'titʃɚ/"
 	},
 	{
-		"chinese": "他(过去)是一名老师",
+		"chinese": "她(过去)是一名老师",
 		"english": "she was a teacher",
 		"soundmark": "/ʃi/ /wəz/ /ə/ /'titʃɚ/"
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
 		"chinese": "曾经是......",
-		"english": "used to be......",
+		"english": "used to be",
 		"soundmark": "/juzd/ /tə/ /bi/"
 	},
 	{
@@ -431,12 +431,12 @@
 	},
 	{
 		"chinese": "她曾经是一名老师但是她去年辞去了她的工作",
-		"english": "she used to be a teacher, but she quit her job last year",
+		"english": "she used to be a teacher but she quit her job last year",
 		"soundmark": "/ʃi/ /juzd/ /tə/ /bi/ /ə/ /'titʃɚ/ /bʌt/ /ʃi/ /kwɪt/ /hɚ/ /dʒɑb/ /læst/ /jɪr/"
 	},
 	{
 		"chinese": "曾经是......",
-		"english": "used to be......",
+		"english": "used to be",
 		"soundmark": "/juzd/ /tə/ /bi/"
 	},
 	{
@@ -491,7 +491,7 @@
 	},
 	{
 		"chinese": "你曾经是一个烟民但是现在你戒了",
-		"english": "you used to be a smoker, but now you quit",
+		"english": "you used to be a smoker but now you quit",
 		"soundmark": "/ju/ /juzd/ /tə/ /bi/ /ə/ /'smokɚ/ /bʌt/ /naʊ/ /ju/ /kwɪt/"
 	},
 	{
@@ -511,7 +511,7 @@
 	},
 	{
 		"chinese": "曾经是......",
-		"english": "used to be......",
+		"english": "used to be",
 		"soundmark": "/juzd/ /tə/ /bi/"
 	},
 	{
@@ -546,7 +546,7 @@
 	},
 	{
 		"chinese": "我们曾经是陌生人但是现在我们是朋友",
-		"english": "we used to be strangers, but now we are friends",
+		"english": "we used to be strangers but now we are friends",
 		"soundmark": "/wi/ /juzd/ /tə/ /bi/ /'strendʒɚz/ /bʌt/ /naʊ/ /wi/ /ɚ/ /frɛndz/"
 	},
 	{
@@ -556,7 +556,7 @@
 	},
 	{
 		"chinese": "曾经是......",
-		"english": "used to be......",
+		"english": "used to be",
 		"soundmark": "/juzd/ /tə/ /bi/"
 	},
 	{
@@ -596,7 +596,7 @@
 	},
 	{
 		"chinese": "我们曾经是亲密的朋友但是再也不是了",
-		"english": "we used to be close friends, but not anymore",
+		"english": "we used to be close friends but not anymore",
 		"soundmark": "/wi/ /juzd/ /tə/ /bi/ /klos/ /frɛndz/ /bʌt/ /nɑt/ /ɛniˈmɔr/"
 	},
 	{
@@ -621,7 +621,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -636,7 +636,7 @@
 	},
 	{
 		"chinese": "她过去爱他但是再也不会了",
-		"english": "she used to love him, but not anymore",
+		"english": "she used to love him but not anymore",
 		"soundmark": "/ʃi/ /juzd/ /tə/ /lʌv/ /hɪm/ /bʌt/ /nɑt/ /ɛniˈmɔr/"
 	},
 	{
@@ -671,7 +671,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -686,7 +686,7 @@
 	},
 	{
 		"chinese": "他过去常常开车去工作但是再也不会了",
-		"english": "he used to drive a car to work, but not anymore",
+		"english": "he used to drive a car to work but not anymore",
 		"soundmark": "/hi/ /juzd/ /tə/ /draɪv/ /ə/ /kɑr/ /tə/ /wɝk/ /bʌt/ /nɑt/ /ɛniˈmɔr/"
 	},
 	{
@@ -726,7 +726,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -741,7 +741,7 @@
 	},
 	{
 		"chinese": "他曾经在那个公司工作但是再也不会了",
-		"english": "he used to work at that company, but not anymore",
+		"english": "he used to work at that company but not anymore",
 		"soundmark": "/hi/ /juzd/ /tə/ /wɝk/ /ət/ /ðæt/ /ˈkʌmpəni/ /bʌt/ /nɑt/ /ɛniˈmɔr/"
 	},
 	{
@@ -771,7 +771,7 @@
 	},
 	{
 		"chinese": "过去常常做......",
-		"english": "used to do......",
+		"english": "used to do",
 		"soundmark": "/juzd/ /tə/ /du/"
 	},
 	{
@@ -786,7 +786,7 @@
 	},
 	{
 		"chinese": "我们过去常常去那个餐厅但是再也不会了",
-		"english": "we used to go to that restaurant, but not anymore",
+		"english": "we used to go to that restaurant but not anymore",
 		"soundmark": "/wi/ /juzd/ /tə/ /ɡo/ /tə/ /ðæt/ /'rɛstrɑnt/ /bʌt/ /nɑt/ /ɛniˈmɔr/"
 	},
 	{
@@ -881,7 +881,7 @@
 	},
 	{
 		"chinese": "你再也不是我的老板。我辞职。",
-		"english": "you are not my boss anymore. I quit.",
+		"english": "you are not my boss anymore I quit",
 		"soundmark": "/ju/ /ɚ/ /nɑt/ /maɪ/ /bɔs/ /ɛniˈmɔr/ /aɪ/ /kwɪt/"
 	},
 	{
diff --git a/scripts/course/courses/36.json b/scripts/course/courses/36.json
index 3a5bccf30..e15371e2b 100644
--- a/scripts/course/courses/36.json
+++ b/scripts/course/courses/36.json
@@ -490,7 +490,7 @@
 		"soundmark": "/tə/ /ʃɛr/ /hɪz/ /tɔɪz/ /wɪð/ /hɪz/ /frɛndz/"
 	},
 	{
-		"chinese": "和他的朋友们分享他的玩具",
+		"chinese": "和他的朋友们分享他的玩具（ing 形式）",
 		"english": "sharing his toys with his friends",
 		"soundmark": "/'ʃɛriŋ/ /hɪz/ /tɔɪz/ /wɪð/ /hɪz/ /frɛndz/"
 	},
@@ -570,7 +570,7 @@
 		"soundmark": "/hi/ /ˈdʌznt/ /maɪnd/"
 	},
 	{
-		"chinese": "他不介意和朋友们分享他的玩具",
+		"chinese": "他不介意和别人分享他的食物",
 		"english": "he doesn't mind sharing his toys with his friends",
 		"soundmark": "/hi/ /ˈdʌznt/ /maɪnd/ /'ʃɛriŋ/ /hɪz/ /fud/ /wɪð/ /'ʌðɚz/"
 	},
@@ -755,7 +755,7 @@
 		"soundmark": "/tə/ /ɡɪv/ /mi/ /səm/ /əd'vaɪs/ /ə'baʊt/ /ðɪs/ /'prɑbləm/"
 	},
 	{
-		"chinese": "给我关于这个问题的一些建议",
+		"chinese": "给我关于这个问题的一些建议（ing 形式）",
 		"english": "giving me some advice about this problem",
 		"soundmark": "/ɡɪviŋ/ /mi/ /səm/ /əd'vaɪs/ /ə'baʊt/ /ðɪs/ /'prɑbləm/"
 	},
@@ -774,4 +774,4 @@
 		"english": "he doesn't mind giving me some advice about this problem",
 		"soundmark": "/hi/ /ˈdʌznt/ /maɪnd/ /ɡɪviŋ/ /mi/ /səm/ /əd'vaɪs/ /ə'baʊt/ /ðɪs/ /'prɑbləm/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/37.json b/scripts/course/courses/37.json
index dd33fec3c..77fc34ae7 100644
--- a/scripts/course/courses/37.json
+++ b/scripts/course/courses/37.json
@@ -301,7 +301,7 @@
 	},
 	{
 		"chinese": "他们(过去)否认用一个石头打破那个窗户",
-		"english": "they denied breaking the window with a stone.",
+		"english": "they denied breaking the window with a stone",
 		"soundmark": "/ðe/ /dɪ'naɪd/ /'brekɪŋ/ /ðə/ /'wɪndo/ /wɪð/ /ə/ /ston/"
 	},
 	{
diff --git a/scripts/course/courses/38.json b/scripts/course/courses/38.json
index d21c7bfb5..17d732e20 100644
--- a/scripts/course/courses/38.json
+++ b/scripts/course/courses/38.json
@@ -196,7 +196,7 @@
 	},
 	{
 		"chinese": "她(过去)承认是迟到的对于这个会议",
-		"english": "she admitted being late for the metting",
+		"english": "she admitted being late for the meeting",
 		"soundmark": "/ʃi/ /ədˈmɪtɪd/ /ˈbiɪŋ/ /let/ /fɚ/ /ðə/ /'mitɪŋ/"
 	},
 	{
@@ -709,4 +709,4 @@
 		"english": "he admitted telling a white lie to avoid hurting someone's feelings",
 		"soundmark": "/hi/ /ədˈmɪtɪd/ /tə/ /ədˈmɪt/ /tə/ /əˈvɔɪd/ /ˈhɝtɪŋ/ /'sʌmwʌnz/ /'filɪŋz/"
 	}
-]
\ No newline at end of file
+]
diff --git a/scripts/course/courses/39.json b/scripts/course/courses/39.json
index 91c2e5e82..db91f5ed8 100644
--- a/scripts/course/courses/39.json
+++ b/scripts/course/courses/39.json
@@ -751,7 +751,7 @@
 	},
 	{
 		"chinese": "老师禁止从其他人那里抄作业",
-		"english": "the teacher prohibits copying homework from others.",
+		"english": "the teacher prohibits copying homework from others",
 		"soundmark": "/ðə/ /'titʃɚ/ /prəˈhɪbɪts/ /ˈkɑpɪɪŋ/ /'homwɝk/ /frʌm/ /'ʌðɚz/"
 	},
 	{
diff --git a/scripts/course/courses/41.json b/scripts/course/courses/41.json
index b76952097..a1353b56a 100644
--- a/scripts/course/courses/41.json
+++ b/scripts/course/courses/41.json
@@ -261,7 +261,7 @@
 	},
 	{
 		"chinese": "她(过去)尝试练习和母语使用者说话",
-		"english": "she tried practicing speaking with native speakers.",
+		"english": "she tried practicing speaking with native speakers",
 		"soundmark": "/ʃi/ /traɪd/ /ˈpræktɪsɪŋ/ /'spikɪŋ/ /wɪð/ /ˈnetɪv/ /'spikɚz/"
 	},
 	{
diff --git a/scripts/course/courses/42.json b/scripts/course/courses/42.json
index 993cdefb7..a0e9cc133 100644
--- a/scripts/course/courses/42.json
+++ b/scripts/course/courses/42.json
@@ -201,7 +201,7 @@
 	},
 	{
 		"chinese": "你(过去)有做这件事吗？",
-		"english": "did you do it?",
+		"english": "did you do it",
 		"soundmark": "/dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -210,8 +210,8 @@
 		"soundmark": "/haʊ/"
 	},
 	{
-		"chinese": "你(过去)如何做这件事的？ how did you do it？",
-		"english": "",
+		"chinese": "你(过去)如何做这件事的？ ",
+		"english": "how did you do it？",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /du/ /ɪt/"
 	},
 	{
@@ -221,12 +221,12 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到这件事的？",
-		"english": "how did you manage to do it?",
+		"english": "how did you manage to do it",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /du/ /ɪt/"
 	},
 	{
 		"chinese": "你(过去)如何设法做到......",
-		"english": "how did you manage...",
+		"english": "how did you manage",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/"
 	},
 	{
@@ -271,7 +271,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到如此迅速地到达这里的？",
-		"english": "how did you manage to get here so quickly?",
+		"english": "how did you manage to get here so quickly",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /ɡɛt/ /hɪr/ /so/ /ˈkwɪklɪ/"
 	},
 	{
@@ -336,7 +336,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到赚如此多的钱的？",
-		"english": "how did you manage to make so much money?",
+		"english": "how did you manage to make so much money",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /mek/ /so/ /mʌtʃ/ /ˈmʌni/"
 	},
 	{
@@ -376,12 +376,12 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到赚如此多的钱的？",
-		"english": "how did you manage to make so much money?",
+		"english": "how did you manage to make so much money",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /mek/ /so/ /mʌtʃ/ /ˈmʌni/"
 	},
 	{
 		"chinese": "你(过去)如何设法做到在一段如此短的时间里赚如此多的钱的？",
-		"english": "how did you manage to make so much money in such a short time?",
+		"english": "how did you manage to make so much money in such a short time",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /mek/ /so/ /mʌtʃ/ /ˈmʌni/ /ɪn/ /sʌtʃ/ /ə/ /ʃɔrt/ /taɪm/"
 	},
 	{
@@ -406,7 +406,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到写这本书的？",
-		"english": "how did you manage to write this book?",
+		"english": "how did you manage to write this book",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /raɪt/ /ðɪs/ /bʊk/"
 	},
 	{
@@ -446,12 +446,12 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到写这本书的？",
-		"english": "how did you manage to write this book?",
+		"english": "how did you manage to write this book",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /raɪt/ /ðɪs/ /bʊk/"
 	},
 	{
 		"chinese": "你(过去)如何设法做到写这本书的当你(过去)在监狱里？",
-		"english": "how did you manage to write this book when you were in prison?",
+		"english": "how did you manage to write this book when you were in prison",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /raɪt/ /ðɪs/ /bʊk/ /wɛn/ /ju/ /wɚ/ /ɪn/ /ˈprɪzn/"
 	},
 	{
@@ -506,7 +506,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到克服你的公开演讲的恐惧的？",
-		"english": "how did you manage to overcome your fear of public speaking?",
+		"english": "how did you manage to overcome your fear of public speaking",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /ˌovɚˈkʌm/ /jʊr/ /fɪr/ /əv/ /ˈpʌblɪk/ /'spikɪŋ/"
 	},
 	{
@@ -561,7 +561,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到保持在工作和生活之间的平衡的？",
-		"english": "how did you manage to keep the balance between work and life?",
+		"english": "how did you manage to keep the balance between work and life",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /kip/ /ðə/ /'bæləns/ /bɪ'twin/ /wɝk/ /ənd/ /laɪf/"
 	},
 	{
@@ -611,7 +611,7 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到为那个度假存足够的钱的？",
-		"english": "how did you manage to save enough money for that vacation?",
+		"english": "how did you manage to save enough money for that vacation",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /sev/ /ɪ'nʌf/ /ˈmʌni/ /ðæt/ /veˈkeʃn/"
 	},
 	{
@@ -636,12 +636,12 @@
 	},
 	{
 		"chinese": "你(过去)如何设法做到为那个度假存足够的钱的？",
-		"english": "how did you manage to save enough money for that vacation?",
+		"english": "how did you manage to save enough money for that vacation",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /sev/ /ɪ'nʌf/ /ˈmʌni/ /ðæt/ /veˈkeʃn/"
 	},
 	{
 		"chinese": "你(过去)如何设法做到在一段如此短的时间里为那个度假存足够的钱的？",
-		"english": "how did you manage to save enough money for that vacation in such a short time?",
+		"english": "how did you manage to save enough money for that vacation in such a short time",
 		"soundmark": "/haʊ/ /dɪd/ /ju/ /ˈmænɪdʒ/ /tə/ /sev/ /ɪ'nʌf/ /ˈmʌni/ /ðæt/ /veˈkeʃn/ /ɪn/ /sʌtʃ/ /ə/ /ʃɔrt/ /taɪm/"
 	}
 ]
\ No newline at end of file