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英语
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He said that the factory ______ for several years.
A.has opened B.opened C.had been open D.is opening
并分析考察的知识点,
人气：468 ℃ 时间：2020-02-03 11:16:41
解答
选c
open可以做动词,但是不是延续性的,所以不能持续several years.
open还可以当形容词,表示状态,这样说它持续several years是可以的,所以选C
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