. ------Don't put the waste on the ground.
------Oh, I'm very sorry. I ____ the dustbin there.
A. don't see B. isn't seeing C. didn't see D. haven't seen
. ------Don't put the waste on the ground.
------Oh, I'm very sorry. I ____ the dustbin there.
A. don't see B. isn't seeing C. didn't see D. haven't seen
C