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    精英家教网 > 高中英语 > 题目详情
    ---- Where is mother?
    ---- She is in the kitchen. She ______ the housework all morning.
    A．was doingB．has doneC．has been doingD．is doing
    C
    考查时态。根据all morning整个上午，可知应该使用现在完成进行时。句意：—你妈妈在哪里？—她再厨房。她一直在做家务。
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