◎ 题干
Do be careful with those fireworks. The slightest spark could _____ them _____.
[     ]
A. set; out   
B. set; off  
C. set; up   
D. set; down
◎ 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“Do be careful with those fireworks. The slightest spark could _____ them _____.[ ]A. set; out B. set; off C. set; up D. set; down…”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。