The three astronauts have splashed down in the Pacific Ocean, only sixmiles from the aircraft carrier that was ____ for the recovery mission.

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• 1This line was carrying equal number of eastbound and westbound trains, and they ____ regularly.

  A.altered

  B.alternated

  C.switched

  D.exchanged

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• 2Visitors to Britain are sometimes surprised to learn that newspapers there have such a large ____.

  A.issue

  B.distribution

  C.coverage

  D.circulation

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• 3I'm sorry to inform you that you application has been declined. Our manager thought you were not ____ for the post.

  A.legible

  B.eligible

  C.valid

  D.literate

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• 4During the famine of 1943, millions of peasants ____ to the cities because they could not make a living in the countryside.

  A.immigrated

  B.emigrated

  C.migrated

  D.generated

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• 5As one of the youngest professors in the university, Miss King is certainly on the ____ of a brilliant career.

  A.end

  B.edge

  C.threshold

  D.course

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• 6Pubs have fanciful names like "The Red Lion" or "The Pig and Whistle" and they often have picutre on a signboard outside to ____ the name.

  A.justify

  B.illustrate

  C.modify

  D.clarify

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• 7There are two main requirements before the fifthgeneration computer can become a reality and it is these that scientists are ____.

  A.anticipating

  B.tackling

  C.manipulating

  D.speculating

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• 8College students in this city have set up "the Cleaner Air Society"to help urban citizens become aware of the ____ to our environment.

  A.conditions

  B.situations 

  C.dangers

  D.threats

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• 9When you get a minor burn, pour some cold water on it, which will help____ the pain of the burn.

  A.relieve

  B.relax

  C.reveal

  D.release

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• 10The library published a colletion of books recently made ____ to the public.

  A.acceptable

  B.accessible

  C.accommodable

  D.accountable

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