问题

Sorry, Professor Smith. I didn’t finish the assignment yesterday.—Oh, youhave 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

The letter is Mary’s. Please give it ______ her.

I wonder what makes you a successful manager.—-I ______ as a waiter for five years, which contributes a lot to my today’s work

The colour and style ______ me but the sizedoesn’t _______ me.

Mr. Wang is a teacher. He ______ in this school for 20 years.

Everyone knows that _____ sun is in the center of thesolar system（太阳系）