_____ the investigation, the committee published the report on the cause of the

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问题 _____ the investigation, the committee published the report on the cause of the accident.

选项 A、Completed
B、Completing
C、Having completed
D、To have completed

答案 C

解析本题考查分词作状语的用法。本题开头提到的investigation(调查)和主句当中提到的“委员会发表事故原因的报告”存在着时间的先后顺序，一般来说，要先调查，才能下结论发表报告，因此，状语的分词应为现在完成式，表示“调查”发生在前，可见本题答案为C项Having completed。

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