Ответ:

1-she and her

2-he and his

3-my and there

4-they

5-our and it

6-mine

Ex. 7

1.She and her brother have got a dog.

2. He has got a scarf. It's his.

3. My parents have got a car. It's theirs

4. They haven't got a bicycle.

5. Our cat is cute. It tail is white.

6. These gloves are mine.