【正确答案】 D

【答案解析】解析：conclusion n.结论，推论；结尾；缔结，议定(协议、条约等)come to／arriveat／reach the conclusion(that)得出结论；jump to a conclusion匆忙得出结论；come toa conclusion结束：at the conclusion of在……结束时；in conclusion(用在讲话或文章的结尾)最后：the conclusion of a peace treaty缔结和平条约。come to the point谈正题，谈主要问题。come to／reach the understanding(that)达成的谅解是……。theory n．理论(没有come to the theory的说法)。