... they need help to contact sponsors and expand the school activities. activities. Unit 4: VOLUNTEER WORK Unit 4: VOLUNTEER WORK Listen Listen Spring School is an informal school. It provides ... their English and performance Arts classes. Arts classes. 4. They dance, sing and play music at me of the langust hotels in HCM 4. They dance, sing and play music at me of the langust hotels ... informal 1. informal 2. 30 street children 2. 30 street children 3. 250 children 3. 250 children 4. 1998 4. 1998 5. volunteers / June. 5. volunteers / June. While you listen While you listen 2....