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_英语解答

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：469 ℃　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