24.  (2013湖北黄冈，37) —Who’s the man over there? Is it Mr. Black?

    —It be him. He’s much taller.

   A. may not   B. can’t   C. will not   D. mustn’t 

23.  (2013 湖北武汉，34) — Honey,stay home before I return.

    —I,mum.

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

22.  ( 2013 河南，26 ) —Dad,must we wait until the light becomes green?

    一Yes,I'm afraid we.That’s the traffic rule.

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

21.  (2013 天津，37) —Where are you going this month?

     —We go to Xiamen,but weVe not sure.

   A. needn’t   B. must   C. might   D. mustn’t 

20.  (2014 浙江宁波，26)you leave now? You only arrived here an hour ago.

    —Sorry,but so much homework is waiting for me.

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

19.  ( 2014 浙江杭州，17) If you smoke,please go outside.

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

18.  ( 2014 湖南长沙，30) —Who’s singing in the garden?

    —It be Mr. Brown. He always practices singing at this time.

   A. must   B. can’t   C. need 

17.  (2014 广东，37) you come with me to Lang Lang’s piano concert this evening?

    一I’d love to,but I have to study for my math test.

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

16.  (2014 江西，29) We pay to get into the concert. It’s free.

     A‘can’t   B. mustn’t   C. might not   D. don't have to 

15.  (2014 河北，34) I follow you. Would you please repeat it?

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