问题
选择题
| — Don't put the waste on the ground, young man. — Oh, I'm sorry. I _____ the dustbin there. |
| A. hadn't seen B. didn't see C. can't see D. haven't seen |
答案
答案：B
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| — Don't put the waste on the ground, young man. — Oh, I'm sorry. I _____ the dustbin there. |
| A. hadn't seen B. didn't see C. can't see D. haven't seen |
答案：B