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- 00:00 免费1、Unit 1 What did you do durin ...
- 00:00 付费2、Unit 1 What did you do durin ...
- 00:00 付费3、Unit 2 Katie always gets up ...
- 00:00 付费4、Unit 2 Katie always gets up ...
- 00:00 付费5、Unit 3 I like my computer(1) ...
- 00:00 付费6、Unit 3 I like my computer(2) ...
- 00:00 付费7、Unit 4 The Mid-Autumn Festiv ...
- 00:00 付费8、Unit 4 The Mid-Autumn Festiv ...
- 00:00 付费9、Unit 5 It will be sunny and ...
- 00:00 付费10、Unit 5 It will be sunny and ...
- 00:00 付费11、Unit 6 I will bring a big b ...
- 00:00 付费12、Unit 6 I will bring a big b ...
- 00:00
付费13、Unit 7 What can I do(1) - 00:00 付费14、Unit 7 What can I do(2)
- 00:00 付费15、Unit 8 We shouldn't waste w ...
- 00:00 付费16、Unit 8 We shouldn't waste w ...
- 00:00 付费17、Unit 9 This bird is bigger ...
- 00:00 付费18、Unit 9 This bird is bigger ...
- 00:00 付费19、Unit 10 I don't feel well t ...
- 00:00 付费20、Unit 10 I don't feel well t ...
- 00:00 付费21、Unit 11 Shall we go to the ...
- 00:00 付费22、Unit 11 Shall we go to the ...
- 00:00 付费23、Unit 12 It's Christmas agai ...
- 00:00 付费24、Unit 12 It's Christmas agai ...