Years ago we didn't know this, but recent science _____ that people who don't sleep well soon get ill.

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• 1Excuse me, could you tell me how to get to the Grand Hotel? I thought it was on this corner, but I seem to ____ a mistake.

  A.make

  B.be making

  C.having made

  D.have made

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• 2The coffee is wonderful! It doesn't taste like anything I _____ before.

  A.was having

  B.have

  C.have ever had

  D.had ever had

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• 3She stared at the painting, wondering where she _____ it.

  A.saw

  B.has seen

  C.sees

  D.had seen

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• 4Danny _____ hard for long to realize his dream and now he is popular.

  A.works

  B.is working

  C.has worked

  D.worked

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• 5So far this year we _____ a fall in house prices by between 5 and 10 percent.

  A.saw

  B.see

  C.had seen

  D.have seen

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• 6You really need to go out and get some fresh air and sunshine. You _____ overworked during thelast two weeks .

  A.have been

  B.were

  C.had been

  D.would be

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• 7The country life he was used to ____ greatly since 1992.

  A.change

  B.has changed

  C.changing

  D.have changed

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• 8— I didn't ask for the name list. Why ______ on my desk? — I put it there just now in case you needed it.

  A.does it land

  B.has it landed

  C.will it land

  D.had it landed

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• 9— What is the price of petrol these days? — Oh, it _____ sharply since last month.

  A.is raised

  B.has risen

  C.has arisen

  D.is increased

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• 10Since my return to China, I haven't seen my host mother in America; nor _____ from her.

  A.I heard

  B.I have heard

  C.did I hear

  D.have I heard

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