. ------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 |
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. ------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 |