in charge of the shopping center has upset him for quite some time.

A. Left       B. Being left      C. Having left      D. To leave

Charles did what he could _____ the servant, although he himself was in danger.

　 A. rescue 　 B. rescued  C. to rescue 　 D. rescuing

-Has Tommy finished his homework yet??

-I have no idea; he ____ it this morning.

　 A. was doing 　 B. had been doing  C. has done 　 D. did

——What about _________ job??　

——It’s too difficult _________ job for me.?

A. the; a 　 B. the; the     C. a; the 　 D. a; a

— Excuse me, could you tell me where I could make a call?

— Sorry, I’m a stranger here.

— ____.

A. Thanks a lot             B. That’s a pity 

C. Thanks anyway       D. I’m sorry to hear that  

There were two boys in the lab,       did the experiment successfully.

  A. the clever of whom  

B. the cleverer or whom

  C. the clever of them

  D. the more clever of them

Let’s keep to the point, or we     any decisions.

A. will never reach    B. have never reached

C. never reach       D. never reached

Lu Xun was ___________ medical student before he turned ___________ great writer.

  A. the; the             B. the; a              C. a; /              D. a; a

________ you understand this rule, you’ll have no further difficulty.

A. Once             B. Unless        C. As         D. Until

My aunt has worked in a clinic ____2008.

        A. after      B.before       C.till       D. since