— Isn’t it amazing that I met my pen-friend Jim on May Day?
— Really? For how many years each other?
A. didn’t you see
B. haven’t you seen
C. hadn’t you seen
D. don’t you see
网友回答
A. didn’t you see
B. haven’t you seen
(答案→)C. hadn’t you seen
D. don’t you see
解析：可联系答.案.网客服索取。