1. D 　2. A 　3. C 　4. A 　5. C 　6. D 　7. C 　8. A 　9. D 　10. D　 11. C 　12. C 　13. A 　14. A 　15. B 　16. B 　17. A 　18. A 　19. C 　20. B

解析：

20. His parents’ wish was that he _________ home immediately.

A. returned　　　 　　　B. would return

C. returns　　　　　　　 D. return

Key:

19. ft is _________ easy as you may think to carry out such an important research.

A. not almost as　　　　　 B. no almost so

C. not nearly so　　　　　 D. nearly not as

18. My brother ___ the Youth League this week.

A. joined　　 　　　B. joins　

　C. took part in　 　　D. joined in

17. It will be _________ to jump into the lake to have a swim on a hot summer day.

A. fun　　 B. a fun　 C. funny　 D. the fun

16. All the _______are going to take part in the _______ this week.

A. salesgirl, sportmeet

B. salesgirls, sports meet

C. salesgirls, sportmeet

D. salesgirls, sportmeeting

15.-It was terribly hot yesterday.

　 -________.

A. Se was it　　　　　 B. So it was

C. It was so　　　　　　 D. It so was

14. Be careful to keep your mouth _______, for there is no need for you to speak.

A. shut　　 　　B. shutted　　

C. shutting　 　　D. to shut

13. _______ Mr Smith is calling on the phone. Would you speak to him?

A. A　　　 B. Some　　 C. Certain.　 D. One

12. Try _____ the puzzle in some other way, son.

A. to solve　　 B. solve　 C. solving　 D. solved