问题标题:
Thereweresomechairsleftover()everyonehadsatdownA.whenB.untilC.thatD.where急```
问题描述:
Thereweresomechairsleftover()everyonehadsatdownA.whenB.untilC.thatD.where
急```
宋泽峰回答:
B,答案就是这个
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