28.-Someone is knocking at the door. It              be Jim.

-It           be him. He's gone to Shanghai.

A. must, mustn't.        B. may, may not.        C. must, may not.       D. must, can't.

27.-What do you think of my composition?

-Nice enough, but the last sentence of it needs        .

A. to improve.                  B .improve                C. improved              D. improving

26.which pocket shall we take, Bob?       one you like. It's all the same to me.

A. Any                         B. Other                       C. Another                    D. The other