It was in the hall---,we used to have meetings---the meeting

这是一个强调路 where we used to have meetings 可以说是插入语 我们先把它去掉 那么句子就成了 it was in the hallthat the meeting was held 这是一个非常典型的强调句 强调句的特点就是 去掉it was …that 句子是完整的 也就是还原成 the meeting was held in the hall 那么第二空就填好了 然后看第一空 那是一个定语从句 我把它改一下你就会了 we sat in the hall where we used to have meetings 刚刚那个同学的简短解释是错误的