Question

【题目】It is high time you ____ your homework.

A. do B. have done

C. will do D. did

Answer 1

【答案】D

【解析】

考查虚拟语气。句意：你确实该去做作业了。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，表示“是该做......得时候了”。所以此空填should do或者did，故选D。