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China recently tightened its waters controls near the Huangy

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China recently tightened its waters controls near the Huangyan Island to prevent Chinesefishing boats from ______in the South China Sea.A.attacking B.having attacked C.being attacked D.having been attacked为什么选C?
只看句中prevent...from...(保护……免受……伤害),这里是说保护中国渔船以免在中国南海收到袭击,谓语动词attack的主语是渔船,所以用被动.收到袭击这件事还未发生,故不能选D.综上,选C.
再问: 为什么不选B?
再答: B不能表被动哦亲