引导表语从句并作表语从句的主语的词有哪些,只有what吗谢谢如The art centre is ____ used to be a factory ,where tractors were made.为什么不用that和which呢又比如，He finds his daughter is different from _____ she was five years ago.填what还是who呢
问题描述：
引导表语从句并作表语从句的主语的词有哪些,只有what吗谢谢
如The art centre is ____ used to be a factory ,where tractors were made.为什么不用that和which呢
又比如，He finds his daughter is different from _____ she was five years ago.填what还是who呢
答