◎ 题干
Mr. Jenkin regretted _____ his secretary for the mistake, for he later discovered it was his own fault.
[     ]
A. to blame
B. being blamed
C. blamed
D. having blamed
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Mr. Jenkin regretted _____ his secretary for the mistake, for he later discovered it was his own fault.[ ]A. to blame B. being blamed C. blamed D. having b…”主要考查了你对  【动名词的完成式】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。