David received a parrot for his birthday. The parrot had a poor vocabulary, and many were not polite. David tried hard    26    the bird’s words and was often saying polite words, playing soft music, trying anything he could think of to set a good example. But nothing ___27   . He shouted at the bird and the bird just got angry and became even __28   . Finally，without any hope，David put it in the freezer. For a few moments he heard the bird kick and cry loudly in it. Then suddenly it was    29    ----- not a sound for half a minute. David was ___30    that he might have hurt the bird and quickly   31    the freezer door. The parrot stepped out onto David’s arm and said，“I believe that I may have made you    32    with me about my impolite language and actions. I will try my best at once to be polite. I am    33    sorry and beg your pardon.”

David was surprised    34    the bird’s change，and he was just to ask what had made such a surprising change when the parrot went on    35    , “May I ask what the chicken in the freezer did?”

26.A. to change             B. changed            C. change              D. changing

27. A. to work              B. working            C. worked         D. will work

28. A. politer          B. less polite          C. more polite        D. not politer

29. A. more quiet        B. quieter              C. quietly               D. quiet

30. A. fright               B. frightening               C. frighted        D. frightened

31. A. opens             B. opening        C. opened              D. open

32. A. angry             B. angrily                  C. anger         D. be angrily

33. A. much             B. really          C. a little             D. just

34. A. on          B. in              C. of                  D. at

35 A. said           B. saying             C. to say               D. say