1. the sister of my friend
my friend's sister
2. the parents of that boy
that boy's parents
3. the room of these people
these people's room
4. the food of those dogs
those dogs' food
5. the hobby of these gentlemen
these gentlemen's hobby
Объяснение:
1. the sister of my friend
my friend's sister
2. the parents of that boy
that boy's parents
3. the room of these people
these people's room
4. the food of those dogs
those dogs' food
5. the hobby of these gentlemen
these gentlemen's hobby
Объяснение: