◎ 题干
Every year, more than 70,000,000 sharks ______ for their fins (鱼翅).
[     ]
A. were killed  
B. have killed  
C. are killed        
D. will kill
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Every year, more than 70,000,000 sharks ______ for their fins (鱼翅).[ ]A. were killedB. have killed C. are killed D. will kill…”主要考查了你对  【一般现在时】  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。