A guided missile consists basically of a warhead attached to a tube like body. A rocket or a jet engine may ____ the missile.

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• 1Most science-fiction writers seek to persuade readers that the world they have created is ____ and is derived from scientific principles.

  A.possible

  B.impossible

  C.certainly

  D.unlikely

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• 2Unfortunately he couldn't ____ for the loss.

  A.explain

  B.call

  C.account

  D.take

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• 3The sick person has taken a ____ for the better.

  A.cover

  B.recover

  C.change

  D.turn

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• 4Everyone should be ____ innocent until it is proved that he is guilty.

  A.presumed

  B.assumed

  C.resumed

  D.consumed

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• 5Some science students reach a high ____of English competence in communication.

  A.level

  B.plane

  C.surface

  D.live

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• 6In judging his behavior, I hope that he committee will ____ his stage performance into account.

  A.put

  B.let

  C.take

  D.make

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