1. Paul and I live near each other.
2. Who are those people? Do you know them?
3. You can help Tom and Tom can help you so you and Tom can help each other.
4. There's food in the kitchen. If you and Chris are hungry, you can help yourselves.
5. We didn't go to Ann's party. She didn't invite us.
6. When we go on holiday, we always enjoy ourselves.
7. Mary and Jane were at school together but they never see each other now.
8. Diane and I are very good friends. We've known each other for a long time.
9. Did you see David and Diane at the party? Yes , but I didn't speak to them.
10. Many people talk to themselves when they're alone.
я не понял 7 предложение, написал интиутивно