题目内容
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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题目内容
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