Word form: Each nation has many people who ... take care of others (Voluntary). The volunteers are helping people in ... areas (Mountain)

Word form
1. Each nation has many people who ... take care of others. (Voluntary)
​2. The volunteers are helping people in ... areas. (Mountain)
3. we believe that someone of the happiest people are those who bring ... to others. (Happy)
4. During summer vacation we work with ... students. (Handicap)
5. She has been an ... since she was only 4. (Orphanage)