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、短信提醒三.单项选择(20分)
1. –Do you want to keep goldfish?
--No, it is _________difficult ________take care of them.
A. so; that B. not; enough to C. too; to D. such; that
2. He ran and ran, but he couldn’t run ________to catch the bus.
A. so fast B. enough fast C. too fast D. fast enough
3. The Chinese girl can speak good English _________. Her English is ________that of Lucy.
A. as well; as well B. as well; as good as C. too; as good D. as well as; as well as
4. I find it _________ to work out this problem. You needn’t go to the teacher.
A. enough easy B. easily enough C. easy enough D. very easily
5. The old man was _________angry __________a word.
A. enough; to say B. so; saying C. very; to say D. too; to say
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