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    科目： 来源：0116 月考题 题型：单选题

    Lisa, now stop for a short break. You should know that you _____ all the morning.
    [     ]
    A. are working
    B. had been working
    C. have been working
    D. have worked

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    科目： 来源：0118 月考题 题型：单选题

    — Where is mother?
    — She is in the kitchen. She _____ the dinner for the party the whole afternoon.
    [     ]
    A. is preparing
    B. was preparing
    C. has preparing
    D. has been preparing

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    科目： 来源：模拟题 题型：单选题

    — Hi! John, would you like to play football with us? 
    — Oh, I can't. I _____ my lesson all the morning and still need half an hour.
    [     ]
    A. am reviewing
    B. have been reviewing
    C. have reviewed
    D. reviewed

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    科目： 来源：湖北省高考真题 题型：单选题

    I won't tell the student the answer to the math problem until he _____ on it for more than an hour.
    [     ]
    A. has been working
    B. will have worked
    C. will have been working
    D. had worked

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    科目： 来源：湖南省高考真题 题型：单选题

    Cathy is taking notes of the grammatical rules in class at Sunshine School, where she _____ English for a
    year.
    [     ]
    A. studies
    B. studied
    C. is studying
    D. has been studying

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    科目： 来源：江西省高考真题 题型：单选题

    — I have got a headache.
    — No wonder. You _____ in front of that computer too long.

    [     ]

    A. work
    B. are working
    C. have been working
    D. worked

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    科目： 来源：0108 模拟题 题型：单选题

    She ought to stop work; she has a headache because she ______ too long.
    [     ]
    A. has been reading
    B. had read
    C. is reading
    D. read

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    科目： 来源：0108 模拟题 题型：单选题

    Mr. Smith _____ these days. I think he should take a holiday before he burns out.
    [     ]
    A. has been overworking
    B. overworked
    C. had overworked
    D. was overworking

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    科目： 来源：0127 模拟题 题型：单选题

    Excuse me, Miss Wang, a man named Robert from the Bank of Construction ____ all morning.
    Could you speak to him now?
    [     ]
    A. phones
    B. has phoned
    C. has been phoning
    D. was phoning

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    科目： 来源：0127 模拟题 题型：单选题

    —  Sorry, I've kept you waiting. 
    —  It's all right. I _____ newspapers all the time.
    [     ]
    A. am reading
    B. had read
    C. was reading
    D. have been reading

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