Researchers have found clear and convincing evidence ________ happiness is the key to better health and longer lives.

试卷相关题目

• 1It was surprising ______ most people paid more than 100 dollars just to see that famous star.

  A.which

  B.that

  C.whether

  D.where

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• 2It _______ that she has lost interest in studying English.

  A.seemed

  B.appears

  C.looks

  D.remains

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• 3______ our earth, or else it will be no longer fit for us to live on.

  A.Protect

  B.To protect

  C.Protecting

  D.Protected

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• 4It is the first time in a year and a half that I _______ the night face to face.

  A.had seen

  B.have seen

  C.saw

  D.see

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• 5______ the police three months to recover the stolen things

  A.It needed

  B.It kept

  C.It spend

  D.It took

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• 6When I came into the classroom this morning, it ______ me that I had left my book in my dormitory.

  A.occurred

  B.was occurred

  C.occurred to

  D.was occurred to

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• 7In the exam , the__________ you are, the__________ mistakes you'll make

  A.carefully; little

  B.more carefully ;fewer

  C.more careful; fewer

  D.more careful; less

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• 8When I returned to my study, I found the floor thoroughly______and all my books______according to the types of books

  A.changing; ranging

  B.changed; ranging

  C.have changed; ranged

  D.has changed; ranged

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• 9What chance ______ of taking an earlier plane?

  A.is there

  B.there is

  C.it is

  D.is it

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• 10I didn't manage to do it _____ you had explained how.

  A.until

  B.unless

  C.when

  D.before

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