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    科目： 来源： 题型：单选题

    When you are using gas, ________ that one of the windows is open.


    1. A.
      be sure
    2. B.
      make sure
    3. C.
      check
    4. D.
      B or C

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    科目： 来源： 题型：单选题

    All the things in the room were ________, but she quickly ________ them ________.


    1. A.
      in order; put; in order
    2. B.
      on order; place; in order
    3. C.
      out of order; put; in order
    4. D.
      by order; place; in order

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    科目： 来源： 题型：单选题

    Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?


    1. A.
      when；on
    2. B.
      that；on
    3. C.
      when；in
    4. D.
      that：in

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    科目： 来源： 题型：单选题

    One of the best ways for people to keep fit is to ________ healthy eating habits.


    1. A.
      grow
    2. B.
      develop
    3. C.
      increase
    4. D.
      raise

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    科目： 来源： 题型：单选题

    A survey was carried out on the sleep time of students in middle schools, ________ were surprising．


    1. A.
      its results
    2. B.
      whose result
    3. C.
      the results of which
    4. D.
      of which results

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    科目： 来源： 题型：单选题

    ________ you look at the painting, ________ you’ll like it．


    1. A.
      The long;the much
    2. B.
      The longer;the more
    3. C.
      Longer;more
    4. D.
      Long;much

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    科目： 来源： 题型：单选题

    Such a great event ________ that it attracted governments and people from across the world to Shanghai．


    1. A.
      was World Expo 2010
    2. B.
      World Expo 2010 was
    3. C.
      has World Expo 2010 been
    4. D.
      World Expo 2010 has been

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    科目： 来源： 题型：单选题

    We think it necessary to prevent sound ________，as it is getting more and serious．


    1. A.
      position
    2. B.
      pollution
    3. C.
      invention
    4. D.
      condition

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    科目： 来源： 题型：单选题

    Cathy bought ________ eggs in the market yesterday．


    1. A.
      two dozen
    2. B.
      two dozens
    3. C.
      two dozen of
    4. D.
      dozen of

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    科目： 来源： 题型：单选题

    She collected ________ I did for the Hope Project the other day．


    1. A.
      three times as many money as
    2. B.
      three times much money than
    3. C.
      three times more money than
    4. D.
      three times many more money

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