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    科目： 来源：不详 题型：单选题


    – I have got a headache.
    --No wonder. You ___in front of that computer too long.
    A．workB．are workingC．have been workingD．worked

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    科目： 来源：不详 题型：单选题


    Leaders of the BRIC countries-----Brazil, Russia, India and China----_______their second summit on Friday. President Hu Jintao then returned home to help direct relief work ______the deadly earthquake in Qinhai.
    A．left, to followB．concluded, following
    C．had left, followingD．had concluded, followed

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    科目： 来源：不详 题型：单选题


    Every possible means _______to prevent the air pollution, but the sky is still not clear.
    A．are being usedB．have been usedC．has been usedD．had been used

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    科目： 来源：不详 题型：单选题


    I ______ on a sofa because my grandparents have come for the weekend.
    A．sleptB．was sleepingC．have sleptD．am sleeping

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    科目： 来源：不详 题型：单选题


    The child said that he had _____ the pen on the desk, but I thought he ____ to me.
    A．laid; liedB．lain; liedC．lied; layD．lain; lay

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    科目： 来源：不详 题型：单选题


    After he had broken the world record, Rod ____ to a restaurant to celebrate with hid friends.
    A．wentB．had goneC．would goD．has gone

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    科目： 来源：不详 题型：单选题


    — Has Tom finished his homework yet?
    — I have no idea, he _____ it this morning.
    A．was doing B．didC．had doneD．would do

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    科目： 来源：不详 题型：单选题


    In the past few months, a discussion ________about whether selecting “Three Goods” Students in elementary and middle schools should be cancelled.
    A．has to be heldB．has been heldC．has been holdingD．was held

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    科目： 来源：不详 题型：单选题


    ．—Let’s throw a surprise party for mom’s  50th birthday.
    —That’s a good idea. We_________several of her friends.
    A．inviteB．had invitedC．are invitingD．will invite

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    科目： 来源：不详 题型：单选题

    Every year a flood of farmers arrive in Shenzhen for the money-making jobs they       before leaving their hometowns.
    A．promisedB．were promisedC．have promisedD．have been promised

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