Two thirds of the area________covered with trees and four fifths of the trees________been planted in the past ten years.

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• 1----Are the new machines working、----Yes,Three million tons of coal _____exploited every year in the city.

  A.is

  B.are

  C.had

  D.have

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• 2Either you or one or your students _____to attend the meeting that is due tomorrow.

  A.are

  B.is

  C.have

  D.be

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• 3He was very angry,because everyone except him _____invited to the party.

  A.were

  B.was

  C.is

  D.are

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• 4The atmosphere is as much a part of the earth as _____its soil and water of its lakes,rivers and oceans.

  A.has

  B.do

  C.is

  D.are

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• 5The population of China ________ larger than that of any other country in the world.

  A.are

  B.is

  C.have

  D.has

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• 6During the past two years, the number of automobile accidents in New York City ________ decreased.

  A.have

  B.has

  C.was

  D.were

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• 7A few of the young trees in Tangsa can be cut each year for firewood. The rest ________ to grow even taller.

  A.left

  B.will left

  C.is left

  D.are left

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• 8A gift, with many flowers ________ to me by my students on Teachers’ Day.

  A.is se nt

  B.has sent

  C.has been sent

  D.was sent

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• 9I hoped that somebody  _____ ___  going to offer  me a lift  home.

  A.is

  B.are

  C.were

  D.was

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• 10I have finished a large part of the novel written by Dickens, the rest of which ________ very difficult.

  A.is

  B.are

  C.was

  D.were

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