英语从句练习题解答

问题描述:

英语从句练习题解答
with the reform of educational system,the teachers__school i worked before have greatly changed their way of teaching.
具体的解释答案是in whose为什么不能是Inwhich

in which 后不能加school为什么啊?这是固定用法?in which这个用法中which相当于名词