问题描述: It is required that every student___work___hard.为什么不用works,不是every每一个么. 1个回答 分类:英语 2014-11-13 问题解答: 我来补答 it is required that .从句中要求用虚拟语气(还有类似的如:it is demanded/ it is suggested..等等)从句的虚拟语气是:should do,should 可以省略,所以就变成了动词原形了 展开全文阅读