Заменить существительное с предлогом of существительным в притяжательном падеже: the house of my father; the car of my son; the books of the girl; the case of this judge; the room of my daughter; the name of her friend; the flat of my brother; the family of their sister; the book of these students.
my father's house
my son's car ;
the girl's books;
this judge's case;
my daughter's room;
her friend's name;
my brother's flat;
their sister's family;
these students' book.