1. 根据汉语提示、首字母提示、英文释义和句意, 写出合适的单词。

1. （1） -- What's your ? -- I'm fourteen years old.
   

3. （2） Do they often play ball games (behind, not before) school?

5. （3） Daniel is my new (a student in the same class).

7. （4） Simon is now in Class Four, (年级) Seven.

9. （5） (everybody) in our school knows him well.