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5. It‘s time ______ about the traffic problem downtown.
A. all to be done
B. anything will be done
C. everything is done
D. something were done
6. Remember to send me a photo of your son next time you ______ to me.
A. write
B. will write
C. are writing
D. would write
7. Don’t try to do everything at once； take it a bit ______.
A. at one time B. by one time C. one for each time D. at a time
8. If Father had returned on the Christmas， we would have had ______.
A. the happiest time
B. a more happier time
C. much happiest time
D. a much happier time
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