the reason why he was late was that he got up late the house is where LuXxun once lived

the reason whe he was late was that he got up late主句是 the reason was that the got up late. 主语the reason 谓语 was表语 that he got up late从句why he was late主语he 谓语 wa...where 和why都是关系副词吧 关系副词只能在引导的句中中做状语吗？在第一个句子中，why是关系副词第二个句子 where 从句并非定语从句， 是表语从句， 所以只能算从句引导词，不能算关系副词。