---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
C. didn't see
D. haven't seen
解析：句意：—不要把垃圾放在地上。—噢，对不起，我没看到那里的垃圾箱。根据对话的语境可以知道说话的时候肯定已经看到垃圾箱了，因此只可能表示的是刚才没看到，不可以用现在的时态。