the park _____ for one and a half years.选项是:A.has opened B.has been opened C.has been open D.was open

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the park _____ for one and a half years.选项是:A.has opened B.has been opened C.has been open D.was open
the park _____ for one and a half years.
选项是:A.has opened B.has been opened C.has been open D.was open

the park _____ for one and a half years.选项是:A.has opened B.has been opened C.has been open D.was open
C.has been open
句子有for one and .时间状语,要用延续性动词.

B
for只曾一度时间,要用完成时,而the park 与open是被动关系,因此has been opened

has been opened
for +时间段 是现在完成时态标志 且在这是被动语态
现在完成时的被动语态结构:主语+have been+动词过去分词
eg:I have lived here for one year.我住在这一年了.
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