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英语
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It is the third time that i have been in Beijing.帮忙分析下这句话的语法结构和时态,为什么用have been
人气：194 ℃ 时间：2019-08-20 12:41:37
解答
It is the first / second / third time.that…是一种固定结构
这一结构中的从句部分,用现在完成时
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