---Hehasturnedonallthelightsinthebuilding.That'sawasteofelectrici

发布时间：2020-08-06 19:44:58

---He has turned on all the lights in the building. That's a waste of electricity.---It's not his ________. He just did what he was told to.A.mistakeB.wrongC.faultD.shorting

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C解析根据句子结构可知，此处应填一个名词，排除B项；A项（错误），C项（过错、过失），D项（缺点、短处），只有C项符合句意。
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