问题描述:
Do you konw _______?
A which floor did he live on B on which floor did he live Cwhich floor he lived on D he lived on which floor
选哪一个?为什么
A which floor did he live on B on which floor did he live Cwhich floor he lived on D he lived on which floor
选哪一个?为什么
问题解答:
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