Write the correct form of the given words.
17. The Boy Scouts of America is a youth ____________(ORGANIZE).
18. We ____________(COLLECTION) old books and clothes and send them to children in mountainous areas.
19. Spend some time at an orphanage. You can bring_______________(HAPPY) to orphan kids by playing with them or teach them music and crafts.
20. The campaign ________(COURAGE) people to recycle paper, cans and glass.