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    精英家教网 > 高中英语 > 题目详情
    15．The ambulance was just arriving，for a worker，who ______ the window on the second floor，fell off the window．（　　）
    A．had been repairingB．was repairing
    C．has been repairingD．would be repairing

    分析 救护车刚刚过来了，因为一个工人在修理二楼的窗户时掉下来了．

    解答 答案：A
    根据题干中"fell off the window"可判断该句的整体时态为过去式，由于"修理窗户"这个动作应在"掉下"之前发生，故应使用过去完成时，因"修理窗户"这个动作在那个时间段是一直进行的并且对现在产生了直接影响，故使用了进行时，故正确选项为过去完成进行时，答案为A．

    点评 本题考查过去完成进行时的用法，应注意各时态的基本用法，根据句意推断出所用时态选出正确选项．

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