---Don't put the waste on the ground.
---Oh, I'm very sorry. I the dustbin（垃圾箱） there.
A. don't see
B. isn't seeing
C. didn't see
D. haven't seen
网友回答
A. don't see
B. isn't seeing
(答案→)C. didn't see
D. haven't seen
解析：考查时态：句意：--别把垃圾扔在地上。--哦，对不起，我没看见这里的垃圾箱。说明刚刚没看见垃圾箱，用一般过去时。选C。