He invited me to a dance after the show         Christmas Eve.

A. at       B. on        C. in         D. by

We were just about ready to leave _____ it started to snow.

    A. when                                                   B. before

    C. after                                                    D. since

It’s quite          me why such things have been allowed to happen.

A．for             B．behind           C．a(chǎn)gainst            D．beyond

—The authors of computer viruses are geniuses.

—I agree. If they applied their wisdom to other net technology         human beings can benefit, it would be better.

A．in which     B．through which    C．from which   D．during which

)— Do you mind if I record your lecture?

   — ___________. Go ahead.

   A. Never mind        B. No way          

C. Not at all       D. No, you’d better not

—May I open the window to let in some fresh air?

—___________

A. Come on     B. Take care    C. Go ahead!    D. Hold on!

You've missed your ____， and you will have to wait for the next round.

A. chance       B. turn     C. time     D. part

—Excuse me， can you tell me where the nearest bank is， please?

—______ Oh yes! It’s past the office， next to a big market.  

A. Mm， let me think.    B. Oh， I beg your pardon?

C. You’re welcome.     D. What do you mean?

—Let’s go and have a good drink tonight

一         Have you got the first prize in the competition？

A．What for?    B．Thanks a lot．     C．Yes I’d like to   D．Why not？

Would you please ______ the paper for me and see if there are any obvious mistakes?

A. look around  B. look into        C. look up          D. look through