完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，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。
Even though it was only October, my students were already whispering about Christmas plans. With each passing day everyone became more 36 , waiting for the final school bell. Upon its 37 everyone would run for their coats and go home, everyone except David.
David was a small boy in ragged (破旧的) clothes. I had often 38 what kind of home life David had, and what kind of mother could send her son to school dressed so 39 for the cold winter months, without a coat, boots, or gloves. But something made David 40 . I can still remember he was always 41 a smile and willing to help. He always 42 after school to straighten chairs and mop the floor. We never talked much. He 43 just simply smile and ask what else he could do, then thank me for letting him stay and slowly 44 home.
Weeks passed and the 45 over the coming Christmas grew into restlessness until the last day of 46 before the holiday break. I smiled in 47 as the last of them hurried out of the door. Turning around I saw David 48 standing by my desk.
“I have something for you,” he said and 49 from behind his back a small box. 50 it to me, he said anxiously, “Open it.” I took the box from him, thanked him and slowly unwrapped it. I lifted the lid and to my 51 I saw nothing. I looked at David‘s smiling face and back into the box and said, “The box is nice, David, but it’s 52 .”
“Oh no, it isn’t,” said David. “It’s full of love. My mum told me before she died that love was something you couldn’t see or touch unless you know it’s there.”
Tears filled my eyes 53 I looked at the proud dirty face that I had rarely given 54 to. After that Christmas, David and I became good friends and I never forgot the meaning 55 the little empty box set on my desk.
36. A. anxious B. courageous 
serious D. sceptical
37. A. warning B. ringing calling D. yelling
38. A. scolded B. wondered realized D. learned
39. A. irregularly B. unnaturally untidily D. improperly
40. A. patient B. upset special D. funny
41. A. expressing B. delivering wearing D. sharing
42. A. practiced B. wandered studied D. stayed
43. A. would B. should might D. could
44. A. aim at B. turn to put off D. head for
45. A. argument B. excitement movement D. judgment
46. A. school B. year education D. program
47. A. relief B. return vain D. control
48. A. weakly B. sadly quietly D. helplessly
49. A. searched B. found raised D. pulled
50. A. Holding B. Handing Sending D. Leaving
51. A. delight B. expectation appreciation D. surprise
52. A. cheap B. empty useless D. improper
53. A. as B. until because D. though
54. A. advice B. support attention D. command
55. A. from B. behind over D. towards