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We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.

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

John has got a fever these days, and he says he doesn’t want to see a doctor, but I’m afraid he has no     .

A. alternative                      B. extra             C. treatment    D. possibility

Many new _______ will be opened up in the future for those with a university degree.

A. realities          B. necessaries     

C. opportunities     D. probabilities

If we go on using energy so wastefully, _____ are that our oil wells will be dried up before　new energy sources can be found to replace oil.

A. chances　       B. realities 　       C. references      　D. tensions

 --Why does the river smell terrible?

--Because large quantities of water__________.

A. have polluted                   B. is being polluted

C. has been polluted        D. have been polluted

People were not allowed to enter the reading room because it          .

A．had been painted         B．was being painted

C．was painting                 D．painted

He will come to see you the moment he        his work.

A．will finish                     B．finishes                             

C．would finish                 D．had finished

—Hi, Tracy, you look tired.

 —I am tired. I _______the living room all day.

A. have been painting         B. had painted    C. painted       D. paint

I have no idea when the bus will arrive. I      for at least half an hour in such cold weather.

 A. had waited       B. have waited      

C. will wait        D. have been waiting

When I was at college I ______ three foreign languages, but I _____ all except a few words of each.

A. spoke; had forgotten                  B. spoke; have forgotten

C. had spoken; had forgotten         D. had spoken; have forgotten