I got up early that morning, but I ________ so because I had no work to do．

A．mustn't have done

B．didn't need to do

C．needn't have done

D．can't have done

You must be a writer, ________?

A．mustn't you

B．are you

C．must you

D．aren't you

She's already two hours late．What ________ to her?

A．can have happened

B．may have happened

C．should have happened

D．must happen

－Will your brother stay home tonight?

－I'm not quite sure．He ________ to the cinema tonight．

A．must go

B．can go

C．may go

D．may be going

Since the road is wet this morning, ________ last night．

A．it must rain

B．it must be raining

C．it must have rained

D．it must have been rain

－Where is John?

－He ________ in the library．

A．should be

B．must be

C．can be

D．must have been

The young man has made so much noise that he ________ not have been allowed to attend the concert．

A．could

B．must

C．would

D．should

－Please don't make a noise．

－________．I'll be as quiet as a mouse．

A．Yes, I won't

B．No, I won't

C．No, I will

D．Yes, I will

I didn't see her in the meeting room this morning．She ________ at the meeting．

A．mustn't have spoken

B．shouldn't have spoken

C．needn't have spoken

D．couldn't have spoken

It's a fine day．Let's go fishing, ________．

A．won't we

B．will we

C．don't we

D．shall we