本课程为收费课程，购买后即可观看完整内容
-
- 00:00 免费1、Lesson 1 I'm not feeling wel ...
- 00:00
付费2、Lesson 2 Did you play basket ... - 00:00 付费3、Lesson 3 Did you go boating ...
- 00:00 付费4、Lesson 4 What did you do las ...
- 00:00 付费5、Lesson 6 Is there a library ...
- 00:00 付费6、Lesson 7 Where do the tigers ...
- 00:00 付费7、Lesson 8 Who are you going t ...
- 00:00 付费8、Lesson 9 I helped a deaf man ...