用be动词的适当形式填空。

1. I ______________ Xiao Ming. I ______________ nine years old.

2. Dick ______________ a singer.

3. Excuse me, ______________ you a teacher?

4. Tom and Lucy ______________ good friends. They ______________ in the same class.

5. What day ______________ it today?

6. It ______________ not a penguin (企鹅).

7. These boxes ______________ too heavy for me.

8. There ______________ a tree on the hill.

9. There ______________ many birds in the sky.

10. My name ______________ Martin. I ______________ from Australia.