定语从句考点分析(考点一) which ，who和 that 不能互换的情况 1. This is the most beautiful courtyard _ the tourists have ever seen.2. Butchering animals is the only thing _ interests the butcher.3. This merchant is not the man _ he used to be.4. The researchers talked for half an hour about things and persons _ they could remember at the institute.（考点二）关系副词和关系代词的辨析1. I still remember the day when the accident happened. I still remember the day which / that was spent in the
