－_________ I help you with the suitcase?

－No, thanks a lot．

Shall

Will

Might

May

－Could I use your phone?

－_________．

Yes, you may use

Yes, you could

Yes, help yourself

Yes, go on

－Must we finish our homework in the classroom now?

－No, you _________．

won’t

needn’t

can’t

don’t

－What _________ it be?

－It _________ be a car, for it’s not moving．

can; mustn’t

can; can’t

can; can

must; mustn’t

－I don’t mind telling you what I know．

－You _________．I’m not asking you for it．

mustn’t

may not

can’t

needn’t

－May I smoke here?

－If you _________, choose a seat in the smoking section．

should

could

may

must

－What do you think of his suggestions?

－________, but I have to give a second thought．

It looks good

It listens good

It sounds good

It sounds well

－Is your father still an engineer?

－________．

Yes, he was

He did not use to

Yes, but he used to

No, but he used to be

－I’ve taken someone else’s green sweater by mistake．

－It ________ Harry’s．He always wears green．

had to be

will be

mustn’t be

could be

－Thank you for inviting us．We had a very good time today．

－________．

No, thank you

I’m afraid not

You shouldn’t say that

It was my pleasure