1. 根据所给词的适当形式填空

1. （1） Why did you make this(decide)?
3. （2） —Are you afraidof (die)?

   —Of course. I don't want to die young.

5. （3） We all know the (important)of studying English well.
7. （4） In Europe, people eat with(knife).
9. （5） We sat around the fire to keep (we) warm.