Відносні та зворотні займенники

Taras Shevchenko is a Ukrainian poet _____ is known all over the world.

That's a fantastic film _____ I saw last week.

That is the school _____ I study.

The woman _____ phoned yesterday wants to buy the house.

I can do this task _____ .

My sister wrote this fairy tale ____ .

We cleaned the room _____ .

Tom opened the door _____ .

You've lost the key _____ .

Children made the chocolate cake _____ .

_____ decorated the flat ourselves.