27. They were playing in the garden　　 they heard a scream.

A. while　　 B. as　　 C. when　　 D. until

26. He went there,　　 some books in a bookshop and called on an old friend of his.

A. to buy　　 B. buy　　 C. buying　　 D. bought

25.-Susan, you will come and watch TV, won’t you?

-　　 . I prefer reading to　　 television.

A. No;watching　　 B. Yes,watch　　 C. Yes;watching　　 D. No;watch

24. Helen　　 go on the trip with us, but she isn’t quite sure yet.

A. shall　　 B. must　　 C. may　　 D. can

23. Every possible means　　 to work out the problem, but it is too difficult for us.

A. hunting for　 B. carrying on　　 C. looking after　　 D. bringing up

22. After graduation from college, he began to go from city to city,　　 a suitable job.

A. hunting for　 B. carrying on　　 C. looking after　　 D. bringing up

21. The reason why he didn’t attend the meeting is　　 he stayed up late last night.

A. because　 B. what　　 C. for　　 D. that

20. I am sorry. I can’t　　 your opinion about this question.

A. argue　　 B. share　　 C. have　　 D. agree

19. This is really an exciting match.　　 the game?

A. Who do you think will win　　 B. Whom do you think will win

C. Do you think who will win　　 D. Do you think whom will win

18.-How can I get to the city if I drive from the airport?

-Go on the highway and follow the　　 to the city.

A. designs　　 B. ways　　 C. sights　　 D. signs