问题描述： what we need+什么后+单数还是复数的动词啊? 1个回答 分类：英语 2014-11-07 问题解答： 我来补答 What 引导主语从句时,主句谓语动词的单复数由表语的单复数决定.如：What he wants are these books.What he wants is some water. 展开全文阅读
