1. They’re friends.
2. We’re at the supermarket.
3. Mary isn’t happy today.
4. Mrs Cooper’s my teacher.
5. You’re a good driver.
6. I’m not at home.
7. You’re not short./ You aren’t short. (ambele sunt versiuni scurte deci ar trebui sa fie ambele corecte)
8. It’s not very cold./ It isn’t very cold.
9. He’s late.
10. They’re not at school. They aren’t at school.