Question

Перефразуйте, употребляя притяжательный падеж.
1) the friend of Susan.
2) the sister of my friend.
3) the son of her step-mother.
4) the parents of that boy.

Answer 1

Susan's friend
my frined's sister
her step-mother's son
that boy's parents

Answer 2

Susan's friend, friend's sister, her step-mother's son, boy's parents