互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒7. ——Have you finished _____the book？
——Not yet. I‘ll try _____it to you before Friday.
A.reading， returning B.to read， to return
C.reading， to return D. to read， returning
8. Many people watched the boys ______ the mountain at that time.
A.climb B.climbing C.to climb D.climbed
9. India had the second ______population in the world.
A.largest B.larger C.most D.smallest
10.When father was young， he ______ from morning till night.
A.was made work B.was made working
C.made to work D.was made to work
11. Five-year-old children are too young to go to school， ________？
A.are they B.aren‘t they
C.were they D.have they
12. ——____I put my coat here？
——Sorry， you ______.
A.Must； mustn‘t B.Do； don’t
C.can； needn‘t D.May； can’t
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