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    Tom’s mother has twice. A.been abroaded B.went abroad C.gone abroad D.been abroad 答案:D have been去过,已回来,have gone 去了.未回来. 【查看更多】

     

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    Tom’s mother has        twice.

    A．been abroaded

    B．went abroad

    C．gone abroad

    D．been abroad

     

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