this factory______for twenty years A.has been open B.has bee

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this factory______for twenty years A.has been open B.has been opened

为你提供精确解答
选【A】
在这里一定要注意,open不是作为动词使用,而是形容词.be open表示开着的状态,就是营业.
have been是现在完成时态.
再问：是我觉得这里应该是现在完成时与被动语态呀，这个工厂是被开呀
再答：工厂在营业，这是主动表被动。比如：教室门开着： the door of the classroom is open. 不是被动，而是强调开的状态。
再问：什么叫主动表被动和强调开的状态
再答：意思是说，在汉语中，虽然工厂是被人打开的。但是open可以是形容词，来表示状态的时候，不再强调被开。而是强调状态。那么就用be+形容词的结构。

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