there were some chairs left over__everyone had sat downA when B unti B错在哪里?

问题描述:

there were some chairs left over__everyone had sat down
A when B unti B错在哪里?

分析下逻辑 人们坐下后还有几个位子空着,选A是对的,选B的意思是有几个位子空着知道人们坐下 逻辑反了

B压根儿句意不通呀!
当大家都坐下时,还有几个座位空着.