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    精英家教网 > 高中英语 > 题目详情
    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
    D
    考查时态。根据句意我现在已经知道你在伦敦了，那么我不知道你在伦敦是过去不知道。所以所以过去时。句意：你好，我不知道你来伦敦了。那么在这里多久了？
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