练习册

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    B.be busy doing sth.意为“忙于干某事 ;can’t help doing sth.意为“禁不住干某事 ;can’t help (to) do sth.意为“不能帮忙干某事 . 【查看更多】

     

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    Alice ,______careful with your pronunciation.

    A. is        B.do be         B.does be     D.do

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    Alice ,______careful with your pronunciation.
    A. is        B.do be         B.does be     D.do

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    Alice ,______careful with your pronunciation.

    A. is        B.do be         B.does be     D.do

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    Alice ,______careful with your pronunciation.

    A. is        B.do be         B.does be     D.do

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    Alice ,______careful with your pronunciation.

    A. is        B.do be         B.does be     D.do

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