阅读下面短文，从短文后所给各题的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

I used to live selfishly, I should admit. But one moment changed me.

　 I was on my lunch break and had 31 the office to get something to eat. On the way, I 32 a busker(街头艺人)，with a hat in front of him. I had some 33 in my pocket, but I would not give them to him, thinking to myself he would 34 use the money to feed his addiction to drugs or alcohol. He 35 like that type-young and ragged. 36 what was I going to spend the money on? Only to feed my addiction to Coca-Cola or chocolate! I then 37 I had no right to place myself above 38 just because he was busking.

I 39 and dropped all the coins into his 40 , and he smiled at me, I watched for a while. As 41 as it sounds, I expected something more to come from that moment—a feeling of 42 or satisfaction, for example. But nothing happened. 43 , I walked off. “It proved to be a waste of 44 ,”I thought.

On my way home at the end of the 45 , I saw the busker again and he was 46 . I watched him pick up the hat and walk 47 a cafe counter. There he poured the 48 contents into a tin collecting 49 an earthquake fund-raising(募捐) event. He was busking for charity(慈善)！

Now I donate any 　50 I have to charity tins and enjoy the feeling of giving.

31. A. left　　　　 B. cleaned　　　 C. prepared　　　 D. searched

32. A. led　　　　　　　　 　　　　　 B. chose　　　 　 C. saw D. fooled

33. A. chocolate　 B. coins　　　　 C. tins　　　　　 D. drugs

34. A. almost　　　 B. only　　　　 C. rather 　　　 D. still

35. A. acted 　　　 　　　　　　　　 B. looked 　　　 C. sounded D. smelt

36. A. Though 　　　 B. For　　　　　 C. Therefore 　 D. But

37. A. declared 　 B. realized　　 C. expected　 　 D. guessed

38. A. it 　　　　　 B. all　　　　　 C. him　　　　　 D. them

39. A. waited 　　 B. followed　　 C. stopped　　　 D. arrived

40. A. rag 　　　　 B. hat　　　　　 C. pocket　　　　 D. counter

41. A. selfish 　　 B. awkward　　　 C. innocent　　　 D. special

42. A. happiness 　 B. sadness　　　 C. love　　　　　 D. hate

43.A.Disappointedly B.Unfortunately C.Coincidentally D.Comfortably

44. A. words 　　　 B. effort　　　 C. space　　　　 D. money

45. A. moment 　　　 B. day　　　　　 C. break　　　　 D. event

46.A. walking around 　　　　　　　　 B. passing by　　 C. packing up D. running off

47. A. around 　　　 B. in　　　　　 C. behind　　　　 D. to

48. A. chief 　　　 B. basic　　　　 C. actual　　　　 D. total

49. A. by 　　　　　 B. for　　　　　 C. on　　　　　　 D. with

50. A. work 　　　　 B. time　　　　 C. energy　　　　 D. change