If someone has to an action or policy, they are responsible for it, and may be required to explain it to other people or be punished if it fails.A.account forB.make upC.focus onD.pay off
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A解析试题分析:考查词组:A. account for是什么的原因,解释B. make up弥补,编造C. focus on专注D. pay off还清,句意:如果有人不得不为行为或政策负责,他们要为他们负责,并被要求向别人解释如果没做到有可能被惩罚。选A。考点:考查词组
点评:英语中有的词组意思比较接近,但内涵不同用法也不一样,平时多记,做题时结合上下文做题。