Замените существительные с предлогом of существительными в притяжательном падеже: the room of my friend, the questions of my son, the wife of my brother, the table of our teacher, the poems of Pushkin, the car of my parents
my friend's room
my son's questions
my brother's wife
our teacher's table
Pushkin's poems
my parents' car
My friend's room
My son's question
Me ntother's wife
Our teacher's table
My parents ' car