【题目】—Do you know the most ancient city in China—Xi’an well?
—No, this is the first time I ________ here.
A. had comeB. am comingC. have come D. came
在线课程【答案】C
【解析】
试题分析：考查时态。It/This/That be the first/second time that sb.+完成时，表示“某人第几次做某事”，根据主句用现在时，故从句用现在完成时候，选C。