Przekreśl zaimki względne who/which/whose w tych zdaniach, w których można je opuścić.

1 The book which I told you about has become a bestseller.
2 This is Mr Burns who works in the IT department.
3 I've just bought the guidebook which you recommended to me.
4 The nicest person who we met on that trip was a guy from Mińsk called Sasha.
5 That's the clothing brand whose clothes are all made from natural fibres.
6 The boy who gave me this book is my cousin.
7 The car which we bought turned out to be full of rust.
8 The dress which I saw online was not the same as the product I received.