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    【题目】20% of the students of Nan Shan Senior High the school colorful clubs so far.

    A．has joined B．has been joined

    C．have joined D．have been joined

    【答案】C

    【解析】

    试题分析：加入俱乐部，应该用join the club主动形式；“so far”亦今为止，与现在完成时连用；20% of the students作主语，谓语应该用复数。故选C。

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