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

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

21. The policeman stopped him when he was driving home and _____ him of speeding.

　A. charged B. accused C. blamed D. deprived

20. His new appointment takes _____ from the beginning of next month.

　A. place B. effect C. post D. office、

19. On this happy occasion, I'd like to say that we are _____ much obliged to you for your kind cooperation.

　A. even so B. ever so C. as yet D. so far

18. The car was completely _____ and the driver seriously injured.

　A. broken off B. taken off C. written off D. picked up

17. What is most obvious in this book are all those details of daily living which make Mrs. Richard _____ common.

　A. nothing but B. anything but C. above all D.rather than

16. The firemen managed to _____ the fire in time.

　A. extinguish B. prevent C. suppress D. ruin

15. It was a great _____ for him to be pleasant to people he didn't like.

　A. attempt B. trouble C. power D. effort

14. He has impressed his employers considerably and _____ he is soon to be promoted.

　A. eventually B. yet C. finally D. accordingly

13. I could just see a car in the distance, but I couldn't _____ what color it was.

　A. look out B. make out C. get across D. take after