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83.Henry can't attend the party ____ at Tom's house at present because he is preparing for the speech at the party ____ at Marie's house tomorrow.
A.held; being held B.held; to be held
C.being held; to be held D.being held; held
84.Jane didn't follow our advice that she ___ more attention to her pronunciation.
A.be paid B.must pay C.pay D.would pay
85.Scientist will have to ____new methods to increase the world's food supply.
A.come about B.come up with C.come up D.come out
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