1.this is peter's book.
2.let's go to the smith.
3.the children's room is upstairs
4.john's sister is twelve year old
5.susan's and Steve's school is old
6.men's shoes are on the second floor
7.my parents's car was not expensive
8.charles's CD play is new
9.this is the boy's bike
10.there are the boy's pencil
Bài 2
1.is this cup yours
2.the coffee is mine
3.that coat is mine
4.he live in hers house
5.you might want yours phone
6.the new car is theirs
7.she cooked ours food
