◎ 题干
You don’t know _____ great effort I have made _____ him to stop smoking. Anyway, my effort has paid off.
[     ]
A. What a ; to persuade(说服)  
B. What a ; persuade  
C. how ; to persuade
D. how a; to persuade
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“You don’t know _____ great effort I have made _____ him to stop smoking. Anyway, my effort has paid off.[ ]A. What a ; to persuade(说服)B. What a ; persua…”主要考查了你对  【不定式】【宾语从句】  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。