As soon as the bus stopped at the station, a group of students got on it. Some cleaned the windows, some swept the floor, and others cleaned the wall inside. We worked hard while talking and laughing. When we found some coins lying on the floor, we picked them up and gave them to the conductors or the drivers.They were very happy and said, "It is very nice of you."
When I got home, it was five o'clock. I felt a little tired, but I was very happy to have done a good deed.