问题
选择题
--- Do you know our town well?
--- No, this is the first time I _______ here.
A．come
B．am coming
C．came
D．have come
答案
答案：D
题目分析：This is the first time + 从句结构，从句用现在完成时，故选D。
点评： It/This is the first time + 从句结构，从句用现在完成时；It/This was the first time + 从句结构,从句用过去完成时。