26. —It is ______ useful book. I borrowed it from ______ school library.

A. a, an         B. an . a         C. an , the        D. a , the

27. —It’s too far. I’m afraid I can’t walk to the square.

     —You can ride _____ bike. My aunt’s bike is here. So I can use ______.

A.my, her      B. mine, hers      C. mine ,her      D.my, hers

28. Do you have toys? I’d like to buy ______ for my counsin.

    A. it          B. one            C. this          D. that

29. — Don’t _______, children.Keep working hard and you will win the match.

— Thank you ,Mr Wang. We’ll try our best

  A. put up        B. call up       C. set up       D. give up