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用不定冠词a或an填空。
1．Maths is ________ useful subject．You can't drop it, I think．
2．It is ________ long time since we met last．
3．Tom's father is ________ artist and his mother is ________ engineer．
4．Last Sunday we had ________ good time．
5．There are only two letters in the word“us”, ________“u”and ________“s”．
6．Before he became ________ university student, he was ________ army man．
7．I spent ________ hour and ________ half writing the composition．
8．Do you have ________ answer to my question?
9．Have you got ________ ten-yuan note?
10．The car has ________ ugly colour．
Every day, we receive a lot of love from others. But how much love do we return? 46 the winter vacation，I made a survey with ten questions, including “Can you remember the birthdays of 47 parents and friends?” and “Are you 48 with your way of returning their love?”
Among the 50 people I interviewed in a park, 49 unforgettable was an old man. He no longer had any 50 to contact his best friends and parents because they all died ten years 51 . I could see deep sadness through the ears in his eyes.
After 52 the interview, I started to ask myself how long it had been 53 the last time I met my parents or best friends. Being busy is always my excuse.
If today we had to leave the world, how could we return our 54 to parents and friends? If we don’t want to 55 regret, we have to value every moment with parents and friends.
46. A. On B. During C. At
47. A. you B. your C. yourself
48. A. satisfied B. worried C. interested
49. A. much B. more C. most
50. A. chance B. duty C. mood
51. A. later B. before C. ago
52. A. finishing B. to finish C. finish
53. A. when B. until C. since
54. A. money B. love C. memory
55. A. feel B. sound C. taste
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