英语语法题It is suggested that he his homework

题目

英语语法题It is suggested that he his homework
____is suggested that he ____his homework.
A.It; finished B.It; finish C.That; finish D.That; finished
我知道第一个空填It,所以选AB中的一个.但是后面finish不知道用那种形式?
请说明正确答案,并且讲解为什么!

答案

It is suggested that he (should) finish his homework.这里是虚拟语气的用法,should可以省略.