（2014年北京市西城區(qū)高三5月二模試題）25. The report aims to explain how these conclusions ______.

A. were reached B. had been reached C. have reached D. had reached

 

A

【解析】句義：這篇報告旨在于解釋這些結論是如何做出來的。本句實際考察的是固定搭配reach the conclusion得出結論。根據(jù)句義可知使用的是被動語態(tài)，排除CD項，B項為過去完成時的被動語態(tài)，在上下文中沒有出現(xiàn)過去的過去的含義。而得出結論是已經(jīng)發(fā)生的事情，故A正確。

 

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