30．More trees         around our city every spring．

      A．plant                   B．planted                C．are planted             D．were planted

29．I have         to tell you．Please come to my office at lunch time．

    What’s it? Tell me now，please!

      A．something important                                B．important something

      C．anything important                                  D．important anything

28．        swim here! It’s dangerous!

      A．Not                     B．Not to                 C．Don’t                    D．Doesn’t

27．We all hope         to the opening ceremony of the Olympic Games next year．

      A．to go                   B．goes                    C．going                            D．go

26．What's your favorite subject?

English．I like it very much         it’s interesting and useful．

A．when                   B．after                       C．if                           D．because

25．I think Mrs. Liu         to help us if she is not too busy tomorrow．

A．come                B．came                     C．will come          D．comes

24．         I use your mobile phone?

    Certainly．Here you are．

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

23．Which animal do you like         , pandas, tigers or monkeys?

A．good            B．well               C．better               D．best

22．Excuse me, where is the library?

   It's on         floor．

A．fourth                  B．four                      C．the fourth               D．the four

21．We         a basketball game with Class 2 three days ago．

A．have              B．had               C．will have             D．are having