◎ 题干
Why not ____ this kind of accident _____ again?
[     ]
A. to prevent; happening
B. prevent; to happen
C. to prevent; happen
D. prevent; happening
◎ 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“Why not ____ this kind of accident _____ again? [ ]A. to prevent; happening B. prevent; to happen C. to prevent; happen D. prevent; happening …”主要考查了你对  【实义动词】【动名词】  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。