1/ He has got a car. It*s his car.
2/ She has got a sister. It*s her sister.
3/ They have got a pet. It*s their pet.
4/You have got a radio. It*s your radio.
5/ We have got a tree house. It*s our tree house.
6/ I have got a toy soldier. It*s my toy soldier.
7/ It has got a toy. It*s its toy.