_____exercise you take, _____you’ll be.

A. The fewer, the fatter                      B. The less, the fatter  C. The less, the more fatter

You ________ stop when the traffic light turns red. 

A. can             B. had better       C. need            D. must

You____________  worry about me. I feel much better now.

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

－Mom, must I clean my room now?

－No, you 　　　　 . You can do it tomorrow.

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

—What do you want to eat for lunch?I will prepare earlier today,

—Honey, you____________. Let's go out to have something different.

A. mustn't B. can't C. shouldn't D. don't have to

 Drivers _______wear the safety belt when driving. This is the traffic rule

A.     can  B. may  C. will  D. must.

We ______ be careful when we are  walking across the road. There are too many cars now.

A. can   B. may   C. must   D. could

You ____be servious! You’re actually going to lend him money again?

A. needn't 　　B. can't　　 C. shouldn't　 D. mustn’t

—Whose shoes are these?

—They _____ be Mike’s. They are much too large for him.

A. might　 B. may　 C. mustn’t　 D. can’t　

 The old people must______ to politely.

A. are spoken    B. spoken          C. speak        D. be spoken