The (1. man's / 2. men's) sandwiches are ready!
2. men's
The (1. dogs' / 2. dogs's) tricycle is outside my house.
1. dogs'
My (1. grandpa' / 2. grandpa's) car is broken.
2. grandpa's
That's my (1. parents' / 2. parents's) house.
1. parents'
The (1. clowns's / 2. clowns') noses are red.
2. clowns'
Her (1. sisters' / 2. sisters's) bags are here in my house.
1. sisters'
Our (1. children's / 2. children') toys are all over the floor!
1. children's
This is (1. Mrs Smith' / 2. Mrs Smith's) diamond ring.
2. Mrs Smith's