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8. It’s so warm here. Why not _________ your coat?
A. take away B. put on C. put down D. take off
9. Though it was blowing hard , __________ went on working in the field.
A. they B. and they C. but they D. it
10. He _________ cross the street.
A. sees B. saw to C. was seen D. was seen to
11. Most international business letters __________ in English.
A. is written B. are written C. is writing D. are writing
12. Please ________ him to the nurse there, and she’ll give him some pills.
A. carry B. bring C. let D. take
13. He is listening to the music _____________ she is washing clothes.
A. after B. before C. that D. while
14. Han Meimei is good at ______________.
A. singing and to dance B. to sing and to dance
C. to sing and dancing D. singing and dancing
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