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    14．-Tony , you look puzzled . Have you understand me ? -I’m sorry. I another problem just now . A．have thought of B．am thinking of C．had thought of D．was thinking of 【查看更多】

     

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    —Tony , you look puzzled . Have you understand me ?

    —I’m sorry. I        another problem just now .

    A．have thought of                                         B．am thinking of

    C．had thought of                                           D．was thinking of

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