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    精英家教网 > 高中英语 > 题目详情
    — I have got a pain in my back. 
    — No wonder. You _____ in front of the computer too long.

    A. have worked
    B. are working
    C. have been working
    D. worked
    C
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    科目：高中英语 来源：0114 期中题 题型：单选题

    — I have got a pain in my back. 
    — No wonder. You _____ in front of the computer too long.
    [     ]
    A. have worked
    B. are working
    C. have been working
    D. worked

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