◎ 题干
Tom has much difficulty _____Chinese so he often asks me _____ help.
[     ]
A. to understand, with              
B. understanding, of
C. to understand, for                
D. understanding, for
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Tom has much difficulty _____Chinese so he often asks me_____ help.[ ]A. to understand, with B. understanding, ofC. to understand, forD. understanding, for…”主要考查了你对  【动名词】【介词】  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。