问题

Sorry, Professor Smith. I didn’t finish the assignment yesterday.—Oh, you _____have done it as yesterday was the deadline. [ ]

A: must
B: mustn't
C: should
D: shouldn't

正确答案是：

同类题型

It took a great deal of courage to admit that all his efforts had been ____

_____ in the newspaper that the Japanese Prime Minister will arrive next Monday

If I you, I the job.

He asa national hero for winning the first gold medal for his country in theOlympics.

We will be shown around the city: schools, museums, and some other places, _______ other visitors seldom go.