Great changes ________ in the city since 1979.

A. have taken place　　　　　　　 B. have taken the place

C. have been taken place　　　　　 D. have been happened

—Jane, have you finished your’paper?

—No,I　　　 my sister with her homework all the morning.

A.help　　　　　　 B.have been helping 　 C.helped 　　　　 D.was helping

Could you drive me to the supermarket at noon if 　　　 ?

　 A. it’s convenient of you 　　 B. you are convenient

　 C. it’s convenient to you 　　 D. you will be convenient

--The weather has been very hot and dry.

---Yes.If it had rained even a drop,things would be much better now!And my vegetables

________.[2010北京34]

　 A. wouldn't die　 B. didn't　 C. hadn't die　 D.wouldn't have died

The Indian Ocean tsunami at the end of 2004 is believed _____ more than 160,000 people and made millions homeless, _______ it perhaps the most destroying tsunami in history.

A. to kill; making      　　　　　　B. to have killed; making

C. having killed; to make 　　　　 D. killing; made

I _____ for three hours when I suddenly became sick.

　 A. had been working　 B. would work　 C. have worked　 D. am working

With his work completed，the businessman stepped back to his seat，feeling pleased ________ he was a man of action.

A. which 　　 B. that 　　 C. what 　　　 D. whether

That’s funny! I remember putting my glasses on my desk, but now they’re_______.

A. missed    B. broken     C. gone    D. disappeared

I don't know whether to stay in teaching or _____ another job.?

A. trying getting　 B. to try to get　 C. trying to get　 D. try get

Nowaday, ___ people in the USA prefer to live in the countryside rather than in the city.

　　A. the majority B. the majority of C. the most D. the most of