—Why does the lake smell terrible? —Because large quantities of water______.

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• 1—The light_________on for long. —Oh, I am sorry , I will go and turn it off.

  A.has been left

  B.has left

  C.had been left

  D.had left

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• 2---I am sure you met Alice at the party last week. ---I don't remember her. What ______ she ______?

  A.was; wearing

  B.had; worn

  C.did; wear

  D.would; wear

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• 3As we know, doing exercise is good for our health, and even walking after having meals _____.

  A.skips

  B.runs

  C.means

  D.counts

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• 4— Are you still busy? — Yes, I _______ my work, and it won't take long.

  A.just finish

  B.am just finishing

  C.have just finished

  D.am just going to finish

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• 5Traffic conditions in Beijing ________ for decades. At first people only complained about jams during rush hours，but today every hour is rush hour.

  A.is worsening

  B.have worsened

  C.have been worsening

  D.worsened

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• 6— Is it convenient if I call you up at 9 tomorrow morning? — I am afraid not. I _____ a group of visiting teachers then.

  A.am meeting

  B.will meet

  C.will be meeting

  D.will have met

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• 7--- Do you love teaching, Miss He? --- I fell in love with teaching in 2000. I ________ for twelve years by this summer.

  A.will teach

  B.would have taught

  C.has been teaching

  D.will have been teaching

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• 8It's time that I ______ home, but I'm enjoying myself, so I will stay here a bit longer.

  A.will go

  B.would go

  C.go

  D.went

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• 9The Diaoyu islands, in the East China Sea between China and Japan, _______ to China since ancient times.

  A.is belonged

  B.have belonged

  C.are belonging

  D.Belonged

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• 10If we _________ the earth, we must take action before it is too late.

  A.will save

  B.are to save

  C.are about to save

  D.are saving

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