用所给词的适当形式填空。

1. They are __________ (sit) on the couch.

2. Everyone in the living room __________ (be) quiet.

3. When the baby grew into a man, he was a great __________ (teach).

4. I __________ (bring) a Christmas tree to school yesterday.

5. The green umbrella is __________ (my).

6. The star always __________ (go) on the top!

7. This snowball is __________ (small)  than the first.

8. Look! She is __________ (skate) forwards.

9. Three wise __________ (man) saw the star.

10. She opens the gift __________(quick).