() 18. John,you play with the knife,or you hurt yourself.

   A. won’t; can't      B. mustn't;may 

    C. shouldn’t; must   D. can't; shouldn’t

() 17. —What about the popcorn?

—Wonderful!Nothing tastes .

   A. nice   B. better   C. worse   D. terrible

() 16. Generally speaking,there be any survivors after such a long time.However,two young people were found . Life is super-nature!

   A. mustn't; living   B. can't; dying

   C. may;dead         D. can't; alive

() 15. —Could you find ways to work out this problem,Jim?

    -Yes,I  .

   A. other;could   B. the other;can

   C. other;can   D. the other;could

() 14. —Fifty dollars for such a dress!You be joking!

      —I'm serious. It's made of silk.

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

() 13. The fish on the plate . Please throw it away at once.

   A. tastes good   B. smells well  

    C. tastes bad     D. smells badly

() 12. You believe what he has said. It be true.

 A. needn’t; shouldn’t    B. don't need to; can't

 C don't need; may not      D. don't need to; mustn't

() 11. —Dad,must we wait until the light becomes green?

-—Yes,Tm afraid we . That's the traffic rule.

   A. can   B. may   C. have to   D. need

() 10. —May I take this magazine out?

一 . It is necessary for you to read it here.

   A. No,you may not   B. No,you mustn't

   C. Yes,you may   D. Yes,you must

() 9. —Excuse me,could you please tell me the way to the bus station?

—Oh,sorry,but I don't know. You go and ask that policeman over there.

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