◎ 题干
— Robert is indeed a wise man.  
— Oh, yes. How often I have regretted ____ his advice.  
[     ]
A. to take        
B. taking    
C. not to take    
D. not taking  
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Robert is indeed a wise man.— Oh, yes. How often I have regretted ____ his advice.[ ]A. to take B. taking C. not to take D. not taking…”主要考查了你对  【动名词】  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。