先行词是什么的时候从句必须用where来引导从句,我就知道有point,还有什么单词啊?

situation,condition,state,activity,job,occasion,千万注意：上述这些词做先行词后面的定语从句未必一定就是where,关键还是分析从句中缺什么成分,若缺主表宾,即先行词可以在后面从句中做主表宾,此时需要选用关系代词而不是where。例如：This is the job that he offered to me。I wasn't clear about the situation that he was in at that moment。