题目内容：

用括号里所给词的适当形式填空。（5分）

1.We are worrying about his _________ (ill).

2.I live on the _________ (twelve ) floor.

3.Did you have fun ___________ (camp)?

4.Our teacher often tells ___________ (interest) stories to the class.

5.He plays football very ___________ (good ).