I’ll go to the library as soon as I finish what I ______.（ ）

A. was doing　　 B. am doing　 C. have done　 D. had been doing

He is too careless and he _______ keys.

　 A. always lost 　 B. always loses

　 C. is always losing 　 D. will always lose

—Dad, would you buy me an MP3 player if I do well in the final exam?

　 —I ____ , I promise.

　 A．would　 　　 B．shall 　　　　 C．should　 　　　　 D．will

Many people believe we are heading for environment disaster 　　 we basically change the way we live.

A. if　　　　 　　 B. but　　　 　　 C. unless　　　　 D. once

The Olympic Games，____________ in 776 BC，did not include women players until 1912．［NMET97］

A．first playing B．to be first played C．first played D．to be first playing

Bats are surprisingly long lived creatures some ______a life span of around 20 years.

A. having 　　　 B. had 　　　　 C. have 　　　　　　 D. to have

They are determined to work out the task,____difficult.

A. however　　 B. whatever　　 C. no matter D. how

What is it about sleep ____ makes it necessary to life?

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

As far as I know, this man ____ risk anything than lose the ring for his wife.

A. would rather　 B. had better　　　　 C. preferred 　　 D. would like to

In some parts of London, missing a bus means __________ for another hour.

A. waiting　　　　　 B. to wait 　　　　 C. wait 　　　　 D. to be waiting