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    【题目】(2016·江苏) Dashan, who_________crosstalk, the Chinese comedic tradition, for decades, wants to mix it up with the Western stand-up tradition.

    A. will be learning B. is learning

    C. had been learning D. has been learning

    【答案】D

    【解析】

    试题分析：考查时态。本句的时间状语是“for decades几十年来”，该时间状语通常和现在完成的有关时态连用，本句强调这几十年来大山一直努力把中国相声和西方的脱口秀相结合。所以使用现在完成进行时，强调动作的延续性和反复性。故D正确。

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