根据句意和首字母提示补全单词。
1. Besides after-class a _____ people like to do a lot of other things in their spare time.
2. Mary's h _____ is collecting stamps.
3. G _____ is my grandpa's favorite. He often plants and waters the plants in his garden.
4. Climbing mountains is very interesting and e _____ .
5. People like relaxing at the s _____ .