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- 00:00 免费1、Lesson 1 May I speak to Mary ...
- 00:00 付费2、Lesson 2 We mustn't cross th ...
- 00:00 付费3、Lesson 3 How many pupils are ...
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付费4、Lesson 4 Where do you live - 00:00 付费5、Lesson 5 What do you do
- 00:00 付费6、Lesson 7 It's seven thirty-f ...
- 00:00 付费7、Lesson 8 What day is it toda ...
- 00:00 付费8、Lesson 9 Do you always have ...
- 00:00 付费9、Lesson 10 Does she always co ...
- 00:00 付费10、Lesson 11 When do you usual ...