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.______ at the seaside !
A How fun the children had B What a fun the children had
C How fun had the children D What fun the children had
9. _____, you have studied very hard; on the other (hand)
you have not learned as much as you need.
A. Instead B. On the one hand
C. Though D. First of all
10.Excuse me，sir，can you tell me how much the_____ is to Guangzhou by plane?
A. cost B .fare C. price D. money
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