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5. Well, ... Well, it was all because of that necklace, your beautiful diamound necklace.唉,就是因为那个项链,你那漂亮的钻石项链!
[问]it在这里指代什么?
[答]it在这里指前面提到的内容(为什么落到这步境地)
[答]不是,在这里是由when引导的定语从句,修饰先行词one afternoon ten years ago.
7. I was the only person in my office who was invited. I've written to accept the invitation.