Изберите нужное союзное слово (перевести предложения) My friend, who/which is very talanted,

Изберите необходимое союзное слово (перевести предложения)
My friend, who/which is very talanted, is arriving today.
She's bought the book who/that she was looking for.
I like the house who/were they live.
She showed me the righ whose/which was a family treasure.
I don't know the man which/ who is sitting next to me.