—Do you know the Water Cube at all?
—No, this is the first time I here.
A. have been
B. came
C. was
D. am going
网友回答
(答案→)A. have been
B. came
C. was
D. am going
解析：答案：A 考查动词时态。句意为：——你知道水立方吗？——不知道，我是第一次来这里。This/It＋be＋序数词＋time＋that从句，从句中要用完成时态，此为固定用法。如be动词为is，则用现在完成时；若be动词为was，则用过去完成时。故答案选A。