Over the past decades, sea ice _____ in the Arctic as a result of global warming.

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• 1— I'm sure Andrew will win the first prize in the final. — I think so. He ______ for it for months.

  A.is preparing

  B.was preparing

  C.has been preparing

  D.had been preparing

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• 2— Mum, I've got a headache. — You _____ long, dear. Go out and take a break.

  A.had read

  B.have been reading

  C.are reading

  D.read

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• 3I haven't finished my composition. I _____ for two hours and a half.

  A.have written it

  B.have been writing it

  C.wrote it

  D.am writing it

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• 4— Why do you want to work for our company? — This is the job that I _____ for.

  A.looked

  B.am to look

  C.had looked

  D.have been looking

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• 5— I am sure Mary will win the first prize in the final. — I think so. She _____ for it for months.

  A.is preparing

  B.was preparing

  C.had been preparing

  D.has been preparing

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• 6Lisa, now stop for a short break. You should know that you _____ all the morning.

  A.are working

  B.had been working

  C.have been working

  D.have worked

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• 7— I have got a headache. — No wonder. You _____ in front of that computer too long.

  A.work

  B.are working

  C.have been working

  D.worked

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• 8— Where is mother? — She is in the kitchen. She _____ the dinner for the party the whole afternoon.

  A.is preparing

  B.was preparing

  C.has preparing

  D.has been preparing

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• 9—  Sorry, I've kept you waiting. —  It's all right. I _____ newspapers all the time.

  A.am reading

  B.had read

  C.was reading

  D.have been reading

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• 10一 Now the weight. Only 115. You'd better put on a few pounds. 一 Wel1, actually I _____ like a horse.

  A.ate

  B.was eating

  C.have been eating

  D.will eat

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