题目内容
— Don't put the waste on the ground, young man.
— Oh, I'm sorry. I _____ the dustbin there.
— Oh, I'm sorry. I _____ the dustbin there.
[ ]
A. hadn't seen
B. didn't see
C. can't see
D. haven't seen
B. didn't see
C. can't see
D. haven't seen
B
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