20. Many people have telephoned the travel agency,　　　 　for further information about tour to Taiwan.

A. asked　　　　　　　 B. to ask　　 　　　　　C. asking　　　　 D. having asked

19. We have to be　　　 　. There is no point in looking at a house we can’t afford to buy.

A. practical　　　　　　 B. attractive　　　　　　 C. actual　　　　　 D. valuable

18. He　　　 　have attended the concert, for he knew nothing about it.

A. shouldn’t　　　　　 B. mustnt’　　　　　　　 C. couldn’t　　　　　 D. needn’t

17. The manager tried to explain the problem,but what he said didn’t　　　 　to the players,

A. get about　　　　　 B. get over　　　　　　 C. get down　　　　 D. get across

16.－You didn’t answer me when I phoned you last night.

－Oh, I 　　　　　off a friend from English at the airport.

A. saw　　　　　　　 B. had seen　　　　　　 C. was seeing　　　　 D. have seen

15.－Let’s stop running, I’m afraid we can’t make it .

－But isn’t　　　 　your hope that we can get to the station in time?

A. one　 　　　　　　　B. the one 　　　　　　　C. there　 　　　　　D. it