关于It's time that的问题It's time that something ___about the traffic problem downtown.A.should be done.B.must be doneC.is to be done D.was done为什么不能选A呢?

问题描述:

关于It's time that的问题
It's time that something ___about the traffic problem downtown.
A.should be done.B.must be done
C.is to be done D.was done
为什么不能选A呢?

It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形,但should不可省略。
It is time that the children went to bed.
It is high time that the children should go to bed.

it is (about) time+一般过去时
这里不用虚拟语气
这个用法:it's about/high time :现在是...的时候了