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    They 3000 English words by the end of last term. A. had learned B. are learning C. will learn D. have learned 【查看更多】

     

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    They ________ 3000 English words by the end of last term．

    [　　]
    A．

    had learned

    B．

    are learning

    C．

    will learn

    D．

    have learned

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