10.--- SARS is such a terrible disease. --- Yes, it is. We _____ be very more careful.

　 A. can　　 B. may　　 C. must　　 D. need

9. Buses and cars _____ stop when the traffic lights are red. 　( can, must, may, need )

8.--- Mrs Brown is a teacher, ______she?--- Yes. She teaches in No. 1 Middle School.

7. --- What’s in the bag, Alice? --- There ____ some tomatoes. Would you like to have one?　 A. is　 B. are　　 C. has　　 D. have

6.--- May I go to the cinema, dad? --- No, you ____. You must finish your homework first.　 A. mustn’t　 B. won’t　　 C. don’t　　 D. needn’t

5. How interesting the computer game is! Why _____ join us?

　 A. won’t　　 B. no　 C. don’t　 D. not

4.--- Do you know why she _____Mr. Wang tomorrow? --- She has changed her mind.

A. won’t visit B. didn’t visit C. doesn’t visit D. hasn’t visited.

3.--- ______ I try the shoes on , please? --- Certainly. Here you are.

　 A. Must　　 B. would　　 C. will　　 D. may

2.--- Must I stay at home and take care of the baby?　 --- No, you _______.

　 A. mustn’t　　 B. won’t　　 C. can’t　　 D. needn’t

1. The city cleaners ______repeat their work many times a day during the dust-storm season.　 A. may　　 B. can　　 C. might　　 D. have to