Express the same ideas in another way.
Example:This is my old boat.
This old boat is mine.
1This is my book
2 That is her bike
3 Is this your money?
4 That is our dog,it is not their dog
5 This is their house
6 We've got two cars.Our car is white.Their car is red

This colorful book is mine.That new bike is hers.Is this pocket money yours?That grey dog is ours, not theirs.This big house is theirs.Two fast cars are ours. White car is ours. Red car is theirs.