选择 In the past few years there ___great changes in our city.A.have been B.be C.had been D.are
人气：359 ℃ 时间：2019-08-21 15:54:59
解答
in the past few years这个时间状语所对应的时态一定是现在完成时
所以选AC为什么不对？
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