问题补充：
---How long have you the map?
---For two years. I it in the market two years ago.
A. bought; had
B. had; bought
C. had; had
D. bought; bought
答案：
A. bought; had
(答案→)B. had; bought
C. had; had
D. bought; bought
解析：本题考查的是：一是how long 与延续性动词连用，二是two years ago，与一般 过去时连用，故选B
