Kate: ___ hold your breath for more than a minute? Jack: No, I can't.
A.Might you
B.Are you able to
C.Can you
D.Will you

To remain on the safe side, we should not take things for granted and should be able to cope with all kinds of contingency; in Salts, for instance, the villagers ___ for accommodating all the visitors.
A.may have been unprepared
B.need not to be prepared
C.must not be prepared
D.may be unprepared

The television isn't working. It ___ damaged during the move.
A.must 
B.must have been
C.must be
D.must have

He ___ them to promote him to manager; after all, he isn’t even a qualified engineer.
A.shouldn’t be expecting
B.needn’t have expected
C.can’t have expected      
D.wouldn’t be expecting

Ted's flight from Amsterdam took more than 11 hours. He ___ be exhausted after such a long flight.
A.can
B.must
C. had better
D.has

I've redone this math problem at least twenty times, but my answer is wrong according to the answer key. The answer in the book ___ be wrong!
A.should
B. have to      
C.must 
D.could

You ___ worry so much. It doesn't do you any good. Either you get the job, or you don't. If you don't, just apply for another one. Eventually, you will find work.
A.can't 
B.don't have to
C.shouldn't
D.may not

Do you always have to say the first thing that pops into your head. ___ you think once in a while before you speak?
A.Can not
B.Don't
C.Can't
D.Why

You ___ forget to pay the rent tomorrow. The landlord is very strict about paying on time.
A.couldn't
B.don't have to
C.mustn't
D.needn’t

The machine ___ on by flipping this switch.
A.could be turning
B.can be turned
C.may turn
D.need turning