which在名词性从句中怎么使用？

Question

如题所述

Answer 1

当先行词前没有最高级，everything,anything,something,nothing时可用which或that,且从句后有介词时只能用which
例1：The girl which is eating ice cream is my sister.
例2：The chair which my father sits on is bought by me.
which也可作疑问词
例：Which is the shirt you bought yesterday?

Answer 2

当要问哪一个是用which。
例如
The girl which wear the red dress is my daughter。