问题
选择题
—It is the first time that I ________ here in Hong Kong.
—What great changes！It’s ten years since I ________here last time.
A．have been；came
B．have been；have come
C．am；came
D．was；have been
答案
答案：A
考查时态。It is the first time that从句用现在完成时；第二空根据时间状语last time可知，用一般过去时，选A。