25、This is a very interesting book. I’ll buy it,         .

       A．how much may it cost                    B．no matter how it may cost

       C．however much it may cost              D．how may it cost

24、

As you worked late yesterday, you         have come this morning.

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

23、―Why didn’t you tell him about the meeting?

 ―He rushed out of the room         I could say a word.

      A. before            B. until                C. when           D. after

22、―Do you mind my smoking her?

―         .

  A. No, thanks.      B. No. Good idea.    C. Yes, please.         D. Yes, Better not.

21、     with so much trouble, we failed to complete the task on time.

  A. Faced                  B. Face                    C. Facing                 D. To face

20、

―Is Jack on duty today?

   ―It       be him. It’s his turn tomorrow.

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

19、Of all the books on the desk,        is of any use for our study.

      A. nothing           B. no one              C. neither            D. none

18、

―It’s thirty years since we last met.
 ―But I still remember the story, believe it or not,       we got lost on a rainy night.

      A. which           B. that              C. what              D. when

17、―Can he take charge of the computer company?
 ―I’m afraid it’s        his ability.
      A. beyond             B. within               C. of                    D. to

16、At the foot of the mountain        .

      A. a village lie        B. lies a village       C. does a village lie       D. lying a village