用所给词的正确形式填空。

1. I'm __________ (outing) than my sister.

2. He has __________ (short) hair than Sam.

   And he's ___________ (calm) than Sam.

3. Pedro is ___________ (funny) than Paul.

4. Tom is ___________ (athletic) than Sam.

5. My twin sister and I __________ (all) have black eyes and black hair.

6. My hair is longer than __________ (she).

7. Which is __________ (big), the sun or the moon?

8. Which is __________ (heavy), Maria, Rose or Linda?

9. He always __________ (beat) me _________ (in/at) tennis.

10. I don't think ___________ (different) are

     important in a ___________ (friend).