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( )24. The two things ______they felt very proud are Jim’s gold watch and Della’s hair.
A. about which B. of which C. in which D. for which
( )25. Do you know which hotel __________?
A. she is staying B. she is staying in C. is she staying D. is she staying in
( )26. Who can think of a situation ________ this idiom can be used?
A. which B. that C. where D. in that
( )27. The astronaut did many experiments in the spaceship,___much help for knowing space.
A. which we think it is B. which we think are of
C. of which we think is D. I think which is of
( )28. The great day we looked forward to _____ at last
A. come B. came C. coming D. comes
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