Last summer, I joined a community service activity to help clean the park near my school. We picked up trash, planted flowers, and painted old benches. At first, I felt tired, but later I was very happy because the park looked more beautiful. I also made new friends and learned how to work in a team. This activity taught me that helping the community is not only useful but also fun. I want to join more activities like this in the future to make my city cleaner and greener.

1. I find reading books a useful hobby.
2. His hobby is playing the guitar in his free time.
3. She began collecting dolls when she was ten.

1. I find reading books a useful hobby.
2. His hobby is playing the guitar in his free time.
3. She began collecting dolls when she was ten.