问题描述： how to do it和 what to do是什么来的?是不是宾语从句改为简单句?这里的DO是泛指还是特指 1个回答 分类：英语 2014-11-02 问题解答： 我来补答 是.例如I don't know how to do it.=I dont't know how to do.I wonder what I should do.=I wonder what to do. 展开全文阅读
