Question

Напиаать краткую форму пиитяжательного патежа (father's pen the pen of the father): 1) the flat of the sister; 2) the bike of my brother: 3) the balls of the boys; 4) the books of the students; 5) the toys of the children.​

Answer 1

1)sister’s flat 2) brother’s bike
3) the boys’ balls4) students’ books 5) children’s toys