Read the following passage and choose the best answer to fill in each blank.

It is a common belief that adults are responsible for big issues ‟such as environmental protection and conservation, and youths can do (17)__________ but focus on their studies or have fun. (18) __________ , the stories of the young people in the Young Voices for the Planet show that even at a young age, people are able to do something for their communities and can really contribute to the care and preservation of the environment. Kids can also do things to (19) __________ a difference, given the chance. And though their skills and talents may vary, they can use their unique gifts to help to preserve the environment and save the world. One of the children in the stories, Olivia, says:

“Every one of us has a great gift we can use to help the earth. Everyone, at any age, can do something, (20) ________ it is picking up rubbish along the side of the road, filling a bird feeder, or bringing reusable bags to the grocery store. For me, I used my artwork. Find your cause and use your talents. The quality of our world is counting (21) __________ you.”