◎ 题干
It is impolite to _____ those persons in trouble.   

[     ]

A. 1augh to   
B. 1augh with   
C. laugh of 
D. laugh at
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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 impolite to _____ those persons in trouble. [ ]A. 1augh to B. 1augh with C.laugh of D. laugh at …”主要考查了你对  【动词短语】  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。