27.It is necessary that everything ____ ready by 6:00 p.m.A.be B.will be C.shall D.would be 选哪个,为什么?

分类: 作业答案 • 2021-12-18 17:08:00

问题描述：

27.It is necessary that everything ____ ready by 6:00 p.m.
A.be B.will be C.shall D.would be
选哪个,为什么?

答

同意楼上的，选a。

答

A
It is necessary/important/strange/surprising that +主语＋(should)+原型动词.
这是一种虚拟语气句型.