6. Our teacher demanded our report ________ before five.

A. must be handed in 　 B. be handed in

C. should hand in 　　　　 D. need be handed in

5.-I promise that she _________ get a nice present on her birthday.

　-It will be a big surprise to her.

A. must　 　　　　　　　　　　 B. shall 　　　　　　　　　　　　 C. should 　　　　　　　　　　 D. would

4.______ that the air conditioners cause so much pollution, I would never have bought one.

A. If I knew　 　　　　　　　 B. Did I know　 　　　　　　 C. If I have known　　　　 D. Had I known

3. One reason that we haven’t had his letter is that he 　it to our old address by mistake.

A. might send 　　　　　　 B. should have sent

C. should send　　　　　　　 D. may have sent

2. John, look at the time. ____ you play the piano at such a late time?

A. Must 　　　　　　　　　　　 B. Can 　　　　　　　　　　　　 C. May　　　　　　　　　　　　 D. Need

1. One of the few things you ___ say about English people with certainty is that they talk a lot about the weather.

A. need 　　　　　　　　　　　 B. must 　　　　　　　　　　　　 C. should 　　　　　　　　　　 D. can

20.I really ________ thank you enough. It’s been an wonderful day.

A. needn’t　　　　　　　　　　 B. should　 　　　　　　　　 C. must 　　　　　　　　　　　 D. cannot

19.According to the newly-made traffic regulation，whoever drives through red light be fined at least 200 dollars．

A．shall　 　　　　　　　　　　 B．may　　　　　　　　　　 C．would　 　　　　　　　　　 D．should

18.Itbe a good movie-its reviews were very good．

A．can　 　　　　　　　　　　　 B．should　 　　　　　　　 C．might　　　　　　　　　　　 D．need

17.He was having a meeting；otherwise he　 over to help us．

A．would have come 　　 B．had come

C．should come　 　　　　 D．came