who的意思是誰

whom是who的賓格形式

whose的意思是誰的

which的意思是哪個

which一般指代事物、動物，或者指代嬰兒、小孩；who指代人或者擬人化的動物。如:

The book which I bought is very cheap.

They killed the wolf which ate their goats.

The baby which is sleeping in bed is her daughter.

I know the man who stole Mary"s wallet.

The rabits very much hate the fox who likes lying.

who問人，which問哪一個

相同：兩者都是疑問詞。

who可以直接問誰，which one 可以問人代表哪一個人

不同：which代表哪一個，比如：which class are you in？你上幾年級？

疑問詞有很多個，也比較常見，在提問時注意不同的疑問詞之間不同的含義，才能正確造句。