Mabel, 18

I volunteered my time in the kids' summer camp from July 12 to July 22. I felt happy because kids were so lovely that I just liked spending time with them. And I think it's important to teach them how to look after themselves.

Nelly, 19

From July 15 to July 31, I volunteered my time to help the old people in the old people's home. I often talked to them so that they didn't feel lonely. When I read newspapers for them, they listened carefully and sometimes it reminded them of their past. Old people do need a lot of care.

David, 18

I like to work outside. So every Sunday in August, I took part in the City Park Clean-up. We picked up the rubbish in the park and planted trees there. Though I felt tired, I was happy because I helped make the park cleaner and greener.

James, 17

I am a student. I love books. Books are my best friends. What I like most is swimming in the sea of knowledge. So I chose to work for the City Library in August. I helped to put the books in order.