问题补充：
----Haven’t seen you for ages.Do you still work in Zhengzhou?
---. It’s two years since I worked there .
A. Yes,I do
B. No,I don’t
C. Yes,I have
D. No,I haven’t
答案：
A. Yes,I do
(答案→)B. No,I don’t
C. Yes,I have
D. No,I haven’t
解析：根据后面的一句：It’s two years since I worked there 我已经在这里工作二年，可知答案。
