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    科目： 来源： 题型：单选题

    You can ________ us in the discussion if you ________．


    1. A.
      take part in; hope so
    2. B.
      join in; want to join
    3. C.
      attend; want to
    4. D.
      join; wish to

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    科目： 来源： 题型：单选题

    ______ experiment took as long as five months and turned out ______ great success.


    1. A.
      The; /
    2. B.
      /; a
    3. C.
      The; a
    4. D.
      The; the

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    科目： 来源： 题型：单选题

    Advertisements are powerful and some companies try to mislead us, so we ________ be careful when reading them.


    1. A.
      can
    2. B.
      may
    3. C.
      must
    4. D.
      would

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    科目： 来源： 题型：单选题

    Bicycles have been around in our life for more than hundreds of years, but no one knows who ________ the first bicycle.


    1. A.
      invented
    2. B.
      had invented
    3. C.
      has invented
    4. D.
      would invent

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    科目： 来源： 题型：单选题

    High-speed trains travel at 300 kilometers an hour，which is about      normal trains．


    1. A.
      four times the speed as
    2. B.
      the speed four times of
    3. C.
      four times as the speed of
    4. D.
      four times the speed of

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    科目： 来源： 题型：单选题

    Last Sundlay, my cousin sent me an e--mail, ________ me to his birthday party.


    1. A.
      invited
    2. B.
      inviting
    3. C.
      to invite
    4. D.
      having invited

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    科目： 来源： 题型：单选题

    The cloud never hides the sun．The truth will be known to all ________．


    1. A.
      on time
    2. B.
      in time
    3. C.
      by time
    4. D.
      from time to time

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    科目： 来源： 题型：单选题

    You ________ drink it; it is poisonous．


    1. A.
      can't
    2. B.
      needn't
    3. C.
      may not
    4. D.
      mustn't

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    科目： 来源： 题型：单选题

    One ought _______ for what one hasn’t done


    1. A.
      not to be punished
    2. B.
      to not be punished
    3. C.
      to not punished
    4. D.
      not be punished

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    科目： 来源： 题型：单选题

    The old movie reminded them ________ the wonderful time they had spent together．


    1. A.
      to
    2. B.
      for
    3. C.
      in
    4. D.
      of

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