◎ 题干
It is selfish _____ him _____ the people in trouble.
[     ]
A. for, to help
B. for; not help
C. of; to help
D. of; not to help
◎ 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“It is selfish _____ him _____ the people in trouble. [ ]A. for, to help B. for; not help C. of; to help D. of; not to help …”主要考查了你对  【不定式】【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。