Напишите данные словосочетания в притяжательном падеже: 1. the flat of peter and helen 2. the dictionary of a student 3. friends of kate 4. the car of the judge 5. the father of my friend

1) peter and helen's the flat.
2) student's the dictionary.
3) kate's friends.
4) the judge's the car
5) my friend's the father.