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    科目： 来源：不详 题型：单选题

    With the development of science, more new technology ______to the field of IT.
    A．has introducedB．is being introducedC．is introducedD．was introduced

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    科目： 来源：不详 题型：单选题

    When I got on the bus，I_____I had left my wallet at home．
    A．was realizingB．realizedC．have realizedD．would realize

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    科目： 来源：不详 题型：单选题

    She was surprised to find the fridge empty；the children _____ everything !
    A．had been eating B．had eaten
    C．have eatenD．have been eating

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    科目： 来源：不详 题型：单选题

    The police _____ the lost boy everywhere when he suddenly turned up in a supermarket.
    A．searchedB．searched forC．was searchingD．were searching for

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    科目： 来源：不详 题型：单选题

    ——-We had a good time in dancing at a disco, why didn't you go with us?
    ——-I ________ there, but my parents didn't let me go.
    A．couldn't goB．failed to goC．hadn't gone D．would have gone

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    科目： 来源：不详 题型：单选题

    The farm as well as its neighboring hills we once spent so much time ___ a new look recently.
    A．on has takenB．has takenC．on having taking D．having taken

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    科目： 来源：不详 题型：单选题

    — How do you find the oil price now?
    — It _____ up all the time and no one knows when it will become stable.
    A．had goneB．has been goingC．has goneD．had been going

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    科目： 来源：不详 题型：单选题

    A trend_______ that 3D films will become more popular ever since the film Avatar hit the market.
    A．has arisenB．aroseC．is arisingD．will arise

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    科目： 来源：不详 题型：单选题

    Where were you at lunch time? I ________ a seat for you in the dining hall.
    A．savedB．was savingC．had savedD．have saved

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    科目： 来源：不详 题型：单选题

    —Have you ever visited the Water Cube?
    —Yes. When I served as a volunteer in Beijing, I      it twice.
    A．have visitedB．visited
    C．had visitedD．had been visiting

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