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

C

【解析】

試題分析：加入俱樂部，應(yīng)該用join the club主動(dòng)形式；“so far”亦今為止，與現(xiàn)在完成時(shí)連用；20% of the students作主語(yǔ)，謂語(yǔ)應(yīng)該用復(fù)數(shù)。故選C。

考點(diǎn)：考察時(shí)態(tài)語(yǔ)態(tài)的運(yùn)用。

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