20. We are interested in the weather because it _____ us so directly ------ what we wear, what we do, and even how we feel.

　 A. benefits　　 B. guides　　 C. affects　　 D. effects

19. An early typewriter produced letters quickly and neatly; the typist, _____ couldn't see his work on his machine.

　 A. however　　 B. therefore　　 C. yet　　 D. although

18. The reason why he adapted to the new situations quickly is that he has a _____ attitude.

　 A. changeable　　 B. alternate　　 C. movable　　 D. flexible

17. Motorists _____ of speeding may be banned from driving for a year.

　 A. convicted　　 B. arrested　　 C. charged　　 D. judged

16. He was not _____ to the club because he wasn't a member.

　 A. allowed　　 B. admitted　　 C. permitted　　 D. approved

15. He is a very honest official and never _____ any gifts from the people who sought his help.

　 A. accepted　　 B. received 　　C. carried　　 D. excepted

14. The number of tickets _____ will be determined by the size of the stadium.

　 A. adaptable　　 B. acceptable　　 C. advisable　　 D. available

13. According to the psychoanalyst Sigmund Freud, wisdom comes from the _____ of maturity.

　 A. fulfillment　　　 B. achievement　　 C. establishment　　 D. accomplishment

12. My camera can be _____ to take pictures in cloudy or sunny conditions.

　 A. treated　　 B. adopted　　 C. adjusted　　 D. reminded

11. Mr. Smith gradually _____ a knowledge of the subject.

　 A. attained　　 B. achieved　　 C. required　　 D. acquired