---Excuse me. You shouldn’t smoke here. Look at the sign “NO SMOKING HERE”.--Sorry I it

问题补充：

---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

答案：

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.