问题描述: 为什么He'll do what he can to study hard.这句话中What 不可以改成that 1个回答 分类:英语 2014-11-16 问题解答: 我来补答 what引导宾语从句,作do的宾语,that不可以而你可以说do everything THAT he can to... 展开全文阅读