It's ten years since the scientist _______on his life's work of discovering the valuable chemical.

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• 1Hard work and lack of sleep have ________her beauty and youth in recent years．

  A.worn out

  B.tried out

  C.made out

  D.sent out

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• 2From my point of view，the theory that _________ by the scientist is not quite scientific．

  A.was risen

  B.brought up

  C.had been raised

  D.was put forward

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• 3His wish to become a driver has ＿＿＿＿＿ true.

  A.realized

  B.come

  C.grown

  D.turned

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• 4— You'd better keep quiet in class. — Sometimes I______ . Yesterday, I was as quiet as a mouse during my English class.

  A.would

  B.do

  C.did

  D.was

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• 5That young Swedish＿＿＿＿＿quite still, except that his lips moved slightly.

  A.kept

  B.grew

  C.got

  D.stood

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• 6If we can ______our present difficulties, then everything should be all right.

  A.cone across

  B.get over

  C.come over

  D.get off

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• 7The building around the corner caught fire last night. The police are now__________the matter.

  A.looking up

  B.looking out

  C.looking into

  D.looking for

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• 8She ＿＿＿＿＿＿＿ red with anger as soon as she heard the news.

  A.went

  B.stayed

  C.became

  D.remained

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• 9In October, the World Health Organization warned that the global financial crisis might _________ worsening mental health, with fear of job loss becoming the biggest source of psychological pressure for China's white-collar workers.

  A.turn to

  B.lead to

  C.refer to

  D.amount to

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• 10The mother often tells her son to be a good boy, warning him to ______ trouble.

  A.hold back from

  B.keep out of

  C.break away from

  D.get rid of

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