29．The giraffe is too tall, so it can, t go            the gate．

     A．through           B．cross              C．across             D．in

28．If you are in a zoo, and you want to go out now, you will see the sign

27．The man stops the boy from            basketball．

     A． play             B．to play              C．played              D．playing

26．The books are made            trees, and we can use trees            many different ways．

     A．from ;on          B．from; in            C．into; in             D．into; on

25．――When you leave, don’t forget            the window．

    ――I will．

     A．closing            B．closed             C．to close             D．close

24．It’s time for class to stop            , please．

    A．talking                     B．to talk              C．talk                 D．to speak

23．――            we go to play football on Sunday?

――Good idea!

A．May                B．Must               C．Will you            D．Shall

22．The children            go to bed            their mother came back．

     A．won’t; until                B．didn’t; until         C．don’t; until          D．didn’t; that

21．There            a heavy rain the day after tomorrow．

     A．will have          B．is going to have      C．is going to be        D．will