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23.John shut everybody out of the kitchen _________ he could prepare his grand surprise for the party.
A. which B. when C. so that D. as if
24.Beijing is larger than ____ city in Africa
A. any B. other C. each D. any other
25.We must hurry up ________ catch the last train.
A. that B. so that to C. in order that D. in order to
26.No matter________ hard it may be，I will carry it out.
A. what B. whatever C. how D. however
27.________ you may do，you must do it well.
A. Which B. Whenever C. Whatever D. When
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