题目内容：

用方框中所给单词的适当形式填空，每词限用一次。(5分)

slowly      swim      one         their        worried

1._________ is good for our health.

2.I am ________ because I’m getting fatter.

3.Sorry, I can’t hear you clearly. Would you please speak more______?

4.Teenagers should be allowed to wear _____  own clothes.

5.Ben was the _______ one to get to school.