He was mad at her( ) not telling him the truth 填介词

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for.He was mad at her for not telling him the truth!他对她发脾气了,因为她没有跟他讲实话!第一,be mad at sb对...发脾气 tell sb the truth 告诉...真相 第二,根据句意,介词for在此表原因.第三,特别注意介词后的...
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for.He was mad at her for not telling him the truth!
他生气了，因为她没有跟他讲实话！