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    科目： 来源：不详 题型：单选题

    Put on your coat! I        you down to the doctor.
    A．takeB．am takingC．tookD．have taken

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    科目： 来源：不详 题型：单选题

    He collected information on 1,000 people, whose IQ       when they were ten years old.
    A．is testedB．has testedC．would testD．had been tested

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    科目： 来源：不详 题型：单选题

    --- Haven’t I told you that you should be home earlier?
    --- Yes, but I         home earlier than I usually do.
    A．was comingB．will comeC．cameD．had come

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    科目： 来源：不详 题型：单选题

    By the time Jack returned home from America, his son __________ from college.
    A．graduateB．has graduatedC．had graduatedD．had been graduated

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    科目： 来源：不详 题型：单选题

    My sister-in-law___________ my brother for ten years.
    A．married withB．has marriedC．has been married withD．has been married to

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    科目： 来源：不详 题型：单选题

    --- I haven’t seen Mary recently. And you?
    --- Me neither. I’m afraid she _________ to her experiment for too long a time.
    A．is devotingB．was devotedC．has been devotingD．has been devoted

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    科目： 来源：不详 题型：单选题

    Hello, I _______ you ______ in London. How long have you been here?
    A．don’t know; wereB．hadn’t known; are
    C．haven’t known; areD．didn’t know ; were

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    科目： 来源：不详 题型：单选题

    Someone _____ his car in front of my house and it’s blocking my way.
    A．has parkedB．parkedC．was parkingD．had parked

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    科目： 来源：不详 题型：单选题

    A Colorado woman said that her iPhone 4 ______ fire while charging overnight.
    A．had caughtB．has caught fireC．was catchingD．caught

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    科目： 来源：不详 题型：单选题

    They studied what ______ since 2007 and found Australian electricity prices were among the  highest in the developed world.
    A．has happenedB．happenedC．had happenedD．has been happening

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