It is widely believed that smoking______ lung cancer?

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• 1The teacher stressed again that the students should not ________ any important details while retellingthe story.

  A.bring out

  B.let out

  C.leave out

  D.make out

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• 2I think you should ________ your studies, or you will never achieve your goal of entering an ideal college.

  A.depend on

  B.concentrate on

  C.put on

  D.come on

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• 3-You look upset. What's the matter?-I had my proposal ________ again.

  A.turned over

  B.turned on

  C.turned off

  D.turned down

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• 4The experiment has ________ the possibility of the existence of any life on that planet, but it does notmean there is no life on other planets.

  A.found out

  B.pointed out

  C.ruled out

  D.carried out

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• 5In the face of all these difficulties, we're not discouraged and ________ good spirits.

  A.keep up

  B.go up

  C.hold up

  D.pick up

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• 6American Indians  _________ about five percent of the U.S. Population.

  A.fill up

  B.bring up

  C.make up

  D.set up

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• 7Whenever she heard that someone had trouble, she would go to ________.

  A.find out

  B.work out

  C.carry out

  D.help out

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• 8The lecturer waited for the laughter to ______ before he could speak again.

  A.die away

  B.die down

  C.die off

  D.die out

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• 9I _________when I was a young girl.

  A.kept a diary

  B.wrote a diary

  C.made diaries

  D.kept diaries

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• 10With no one to talk to, he had to ______.   

  A.get used to be lonely

  B.be used to be lonely

  C.get used to loneliness

  D.used to loneliness

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