Do your homework?为什么不变ing形式
题目
Do your homework?为什么不变ing形式
答案
如果单独使用是固定结构do one's homework.但也可以根据不同的要求来变换:We spend lots of time doing our homework every day.
Doing your homework is necessary.
Most of students have probrems doing their homework
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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