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- 12:56 免费1、Unit 1 What are those farmer ...
- 00:00 付费2、Unit 2 A country life is a h ...
- 00:00 付费3、Unit 3 Where are you from
- 00:00 付费4、Unit 4 I like the city very ...
- 00:00 付费5、Unit 5 What's the matter wit ...
- 00:00 付费6、Unit 6 The secret to good he ...
- 00:00 付费7、Unit 7 What did you do yeste ...
- 00:00 付费8、Unit 8 A trip to Hong Kong
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付费9、Unit 9 Was I a good girl bac ... - 00:00 付费10、Unit 10 Then and now
- 00:00 付费11、Unit 11 I like the Spring F ...
- 00:00 付费12、Unit 12 Christmas