怎么判断地点状语从句和定语从句

题目

怎么判断地点状语从句和定语从句
The house was destroyed in a big fire,so the family had to build another one ( ）the old house stood.
A where Bin which C the place where D the place in which
答案A 为什么不能选B 有人说把B改成 on which 可以 那不是成为一个定语从句了吗 one成为先行词 但不是说地点状语从句没有先行词的吗 这不是矛盾吗
又如这句话
he told what to do if we were traveling ( where）the customs were quite diferent from our own.
A where Bin which C when D what
这一句 为什么不能选 when
顺便问一句 能引导地点状语从句的是不是只有where 和wherever

答案

第一个：如你所说这个是地点状语从句,由where 引导,同时引导词where 在从句中作状语.如果要选B的话这个从句就是“介词+关系代词”引导的定语从句,定语从句必须有先行词,而显然这个句子不具备,除非改为...build anoth...