问题
选择题
—Do you know the most ancient city in China—Xi’an well?
—No，this is the first time I ________ here.
A．came
B．have come
C．am coming
D．come
答案
答案：B
考查时态。It is the first/second…time sb. that某人第几次做某事，从句用现在完成时候，选B。