【题目】── Do you know our town?
── No, this is the first time I ________ here.
A. was B. have been
C. came D. am coming
在线课程【答案】B
【解析】试题分析：考查现在完成时。句意：你了解我们的城镇吗？不了解，这是我第一次来。A. was 过去时；B. have been 现在完成时；C. came 过去式； D. am coming 过去进行时。由the first time可知用现在完成时，所以选B。