追答应该结合上下句分析,还原应该是it was in the hall I found the professor who made the speech yesterday. 和 the students often have a meeting in the hall两个单句。
定从where the students often have a meeting 修饰的是the hall,而不是状语in the hall,还原后将in which 的in代入,与前面的in无关。
本文如未解决您的问题请添加抖音号:51dongshi(抖音搜索懂视),直接咨询即可。