The students were participating ________ an international energy-saving competition between towns in New England and Canad

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• 1We have to try every means to ________ the costs of the construction project.

  A.bring off

  B.bring forth

  C.bring down

  D.bring back

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• 2We ________ to start our own business, but we never had enough money.

  A.have hoped

  B.hope

  C.had hoped

  D.should hope

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• 3The police set a ________ to catch the thieves.

  A.plan

  B.device

  C.trap

  D.trick

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• 4Everyone had an application from in his hand, but no one knew which office room ________.

  A.to send it to

  B.to send it

  C.to be sent to

  D.to have it sent

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• 5Frankfurt, Germany, is in one of the most ________ populated regions of Western Europe.

  A.densely

  B.vastly

  C.enormously

  D.largely

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• 6When she was criticized, she claimed that it was outside her ________ of responsibility.

  A.field

  B.limit

  C.extent

  D.range

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• 7While ________ the sun, the satellite has sent more than four billion bits of information back to earth.

  A.having orbited

  B.being orbited

  C.having been orbited

  D.orbiting

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• 8Language is a city, to the building of ________ every human being brought a stone.

  A.which

  B.that

  C.it

  D.this

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• 9________ of the two books holds the opinion that the danger of nuclear war is increasing.

  A.None

  B.Either

  C.Both

  D.Neither

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• 10Government cannot operate effectively ________ it is free from such interference.

  A.so long as

  B.so that

  C.unless

  D.because

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