问题描述: I don't think its a good idea to copg other's homeworR.为什么用it's而不用that's 1个回答 分类:英语 2014-12-12 问题解答: 我来补答 我刚刚回答的不行么 - -此处可以直接说 I don't think copying other's homework is a good idea.但是 copying other's homework 整个做主语未免显得冗杂所以需要形式主语来代替it此处做形式主语,代替copy other's homeworkthat不行.没有用that 做形式主语的用法..这样行么? 再问: 谢谢了 再答: 要采纳我哦 展开全文阅读