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( )17. Thanks for your invitation(邀请), but I’m so sorry I can’t go. I need to_____my baby at home.
A. take away B. take off C. take care of D. take out of
( )18. --Do you ____after your mother or your father?
-- My father .We both have big eyes and black hair.
A. look B. take C. run
( )19. You must _____more time ________how to use computers.
A. spend; learn B. spend; learning C. spend; to learn D. take; to learn
( )20. Thank you for _____ me to your home this weekend.
A. inviting B. invite C. will invite D. to invite
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