20. - What should I do first?

　　 - The instructions _______ that you should mix flour with water carefully first.

　 A. go　　　　　　 B. tell　　　　　　　　 C. write　　　　　　 D. say

19. - Could I have a word with you, mum?

　　 - Oh dear, if you _______.

　 A. can　　　　　 B. must　　　　　　　　 C. may　　　　　　　 D. should

18. It remains _______ whether Jim’ ll be fit enough to play in the finals.

　 A. seen　　　　　 B. to be seen　　　　　 C. seeing　　　　　　 D. to see

17.-If you like I can do some shopping for you.

　 - That’ s a very kind _______.

　 A. offer　　　　 B. service　　　　　　 C. point　　　　　　 D. suggestion

16. My friend, who _______ on the International Olympic Committee all his life, is retiring next month.

　 A. served　　　　 B. is serving　　　　　 C. had served　　　　 D. has served

15. We always keep _______ spare paper, in case we run out.

　 A. too much　　　 B. a number of　　　　 C. plenty of　　　　 D. a good many

14. If you can’ t decide which of the two books to borrow, why don’ t you take_____? I won’ t read them this week.

　 A. all　　　　　　 B. any　　　　　　　　 C. either　　　　　 D. both

13. I was given three books on cooking, the first _______ I really enjoyed.

　 A. of that　　　　 B. of which　　　　　 C. that　　　　　　 D. which

12. Progress so far has been very good. _______, we are sure that the project will be completed on time.

　 A. However　　　 B. Otherwise　　　　　 C. Therefore　　　　 D. Besides