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    22．--What can I do for you.sir?--I a DVD player here yesterday.but it doesn't work．A．buy B．bought C．am buying D．will buy 【查看更多】

     

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    --What can I do for you，sir?

    --I _________ a DVD player here yesterday，but it doesn't work．

    A．buy              B．bought            C．am buying             D．will buy

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