but i don't think you can smoke here.I didn't know this is a...
but i don't think you can smoke here.I didn't know this is a...
为什么是didn't
为什么是didn't
英语人气：571 ℃时间：2019-10-03 23:02:29
优质解答
用did not因为回答者所要表述的是他之前不知道不能抽烟这一个事实.表述的是过去的状态所以使用did not,望采纳
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