Помогите разобрать 2-ое упражнение

1. Dinner is ready. Sit down and help yourself to the chicken. 2. Tom built the house yourself 3. Kate hurt yourself while she was playing volleyball. I really enjoyed  myself at the seaside.  4. My granny knits all her socks and scarves yourself  5. It's very delicious! Did you invent the recipe yourself 6. We painted the walls of our kitchen myself 7. He chose the car yourself 8. They were proud of myself 9. In my dreams I often see yourself on a beautiful island.  10. The pirate found myself in a strange place.