Lots of the scientists in our country are working hard to _______the planet Mars .

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• 1What I want to ______ to teenagers is that being addicted to the Internet will to some extent do harm to both mental and physical health．

  A.get off

  B.get through

  C.get across

  D.get down

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• 2It was _________that Miss Wang had been to California and there she met Dr. White __________, who became her husband later.

  A.the first time, the first time

  B.the first time, for the first time

  C.for the first time, for the first time

  D.for the first time, the first time

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• 3Don't mention that at the beginning of the story, or it may ________ the shocking ending.

  A.give away

  B.give out

  C.give up

  D.give off

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• 4It __________ no difference to me whether their team can win the game or not.

  A.takes

  B.makes

  C.wants

  D.tells

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• 5We tried to _________his doubts and let him tell the truth.

  A.replace

  B.remove

  C.review

  D.rebuild

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• 6Please tell me how global warming ________. I am still in the dark.  

  A.came by

  B.came out

  C.came to

  D.came about

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• 7The minute I saw my former classmate, his name simply ________me , and I stood there not  knowing how to address him.

  A.chocked

  B.failed

  C.escaped

  D.confused

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• 8What he had said and done in the school ______ his parents and teachers.

  A.was pleased

  B.pleased

  C.pleased by

  D.pleased with

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• 9He did all he could to _______ but nobody noticed him.

  A.draw people's attention

  B.focus his attention

  C.draw attention to

  D.pay attention

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• 10In order to decrease the death rate, the rescue team are _________ in saving more lives.

  A.succeeded

  B.achieved

  C.finished

  D.employed

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