31．--Tom and Jim study very hard．

    --____________ and ________________．

  A．So do they；so you do    B．So they do；so do you

  C．They do so；you do so    D．So do they；so do you

30．When you are in class，you must concentrate your attention __________ the lesson．

   A．to    B．in    C．On    D．over

29．--None of us can work out the maths problem．

    --If Tom _________ here，he ___________ it out．He is so clever．

  A．were；would work    B．was；will work    C．is；will work    D．were；have worked

28．Excuse me，I didn’t catch what you said．Can you tell me __________ just now？

  A．you say what    B．what you say    C．to say what    D．what you said

27．--Why were you late this morning?

    --I was _________ I overslept．

  A．because of    B．because    C．why    D．what

26．Look！There are many clouds in the sky．_________ it’s going to rain soon．

 A．Seems    B．Seeming    C．It seems    D．It seems which

25．--Look！How big the dog is！

    --Don’t go neat to it．It _________ bite(咬)you．

  A．can    B．might    C．will    D．must

24．I don’t like rock music．It _______ me feel angry．

  A．lets    B．makes    C．asks    D．orders

23．____________present．many teenagers play computer games for many hours．

  A．In    B．At    C．On    D．/

22．--The light in Mr．Wang’s room is on．I am sure he______________ now．

    ---I agree．He usually stays up late every night．

  A．might work    B．must be working    C．must work    D．can be working