Fill in the right form of 'be'. What is David’s favourite subject?

1. I was fine. 2. I am at my new school. 3. It is far from my home, so I can walk there. 4. It is very big and it is great. 5. I like my classmates. 6. They are very friendly. 7. I am in Class 5B. 8. We have five lessons every day. 9. The lessons are very difficult, so I have a lot of free time. 10. My favourite subject is Maths. 11. My Math teacher is very nice.