Решение:
- I am a pupil. This is my school.
- Mike has a sister. Her name is Kate.
- The boys play hockey with their friends. They play every Sunday.
- Ann has a dog. The dog is clever. Ann likes her dog.
- Tom can ride a bike. He likes his bike.
- We live in a new house. The house is big.
- Jack plays with his brother. They like to play together.
- My mum is a doctor. She works in a hospital.
- My grandparents have a pig. Its tail is short.
Ответ: my, Her, their, The, her, The, his, The, his, Its.