Choose the correct form of the verb "to be" and complete the senences.

1. I ... happy.

2. My sister ... five.

3. Mum and dad ... not at home.

4. Tom ... from London.

5. ... it your dog?

6. ... they at the zoo?

7. I ... not at the shop.

8. Lizzy and Emily ... at school.

9. His brother ... not from Moscow.

10. How old ... you?