Meeting , managers left the room one by one.A. finishingB. being finishedC. having finishe

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A. finishing
B. being finished
C. having finished
(答案→)D. finished
解析：考查独立主格结构，句意：会议结束了，经理们一个接一个地离开了房间。独立主格结构分词有自己的主语，与句子的主语不一致，根据语境Meeting与finish之间是被动关系，所以用过去分词选D。