题目内容
【题目】More than 70,000,000 sharks ______ every year. It's really time for us to do something.
A.kill
B.killed
C.are killed
D.were killed
【答案】C
【解析】句意:每年都有超过7千万头鲨鱼被杀以获得它们的鳍片。这是一个事实的描述,用一般现在时;该句应该是鲨鱼被杀害,因此是被动语态,所以答案是C
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