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    精英家教网 > 高中英语 > 题目详情
    ---I’m sorry, but there is no smoking on this flight.
    ---Oh, I _____that. Sorry, I won’t again.
    A. don’t know     B didn’t know    C. won’t know     D. haven’t known
    B

    试题分析：考查时态：句意：--很抱歉，但是飞机上个不能抽烟。--哦，我不知道，我不会再抽了。本题是在强调我过去不知道这个动作，所以用一般过去时态。选择B。
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