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试题详情及答案解析
Did you attend the meeting ________yesterday ?
A.to be heldB.having been held
C.heldD.being held
答案:C
试题分析:句意:你参加昨天举行的会议了吗?A. to be held 将来被动B. having been held先发生被动     C. held被动完成D. being held正在被动,根据yesterday得知会议已经被举行,故选C。
考点:考查非谓语动词的用法。