It is( )that we made contact with the company

问题描述:

It is( )that we made contact with the company
为什么要填time而不填necessary.到底是怎么判断的啊?

如果是necessary,后面的从句的谓语必须是原形.
因为It's necessary that sb (should) do.,这个是个虚拟语气的句型.
所以这个句子根据后面的谓语是made,过去时,表明用time.
因为It's time that sb did.或者sb should do.都可以,也是虚拟语气的句型.