---Excuse me. You shouldn’t smoke here. Look at the sign “NO SMOKING HERE”.
--Sorry, I it just now.
A. doesn’t see
B. haven’t seen
C. didn’t see
D. hadn’t seen
网友回答
A. doesn’t see
B. haven’t seen
(答案→)C. didn’t see
D. hadn’t seen
解析：just now 意思是“刚才”，表示过去的时间，故选C.