题目内容：

根据中文、英文解释或句意填空

1. My father is a very good ____________(游泳者). He can swim so well.

2. ____________ is the first day of a week and Monday is the second.

3. We don’t like Daniel because he is not very ____________(礼貌) and likes playing tricks on others.

4. I’m a little fat, and I think I need more ______________ (锻炼)

5. The book is so ______________ (fun), and we all want to read it.