----- Nội dung dịch tự động từ ảnh ----- 4. They help the elderly and the street children. 5. They help the community by participating in recycling program. 6. They start their work at 7 am and finish at 5 pm. 7. They collect used glass, paper and cans for recycling. 8. They hope to give more green to the city and earn more money for their school.