◎ 题干
He turns deaf ear to his parents, ________ many times they have pointed out his weaknesses.
[     ]
A. whatever  
B. whichever
C. however  
D. whenever
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“He turns deaf ear to his parents, ________ many times they have pointed out his weaknesses.[ ]A. whateverB. whicheverC. howeverD. whenever…”主要考查了你对  【从属连词】  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。