阅读下列短文，从每题所给的A、B、C和D 四个选项中，选出最佳选项。
A
Volunteer Summer Camp for Teens in Costa Rica
Are you 16 or 17 years old and wanting to volunteer abroad this summer? International Volunteer HQ’s Summer Camp for teen volunteers is an awesome way for 16- and 17- year- old volunteers to spend part of their summer holidays contributing towards important community initiatives and learning about Costa Rican culture.
What to expect and how you'll make an impact?
The Teen Volunteer Summer Camp is an incredible cultural immersion(沉浸) experience available to individual volunteers aged 16 and 17 and it is fully accompanied by adults.
Participants will take part in planned activities including volunteering in local community projects, taking local dance lessons, going on cultural adventures, and joining nature tours led by our professional guides.
The Volunteer Teen Camp has two available start dates in August. The first is available on August 1st, and participants can join for a 1 –3 week duration. The second start date is August 15th for a maximum of one week.
Why join the Volunteer Summer Camp in Costa Rica with IVHQ?
When you volunteer as a teen in Costa Rica, you'll be adding value to the local community, while also developing personally and professionally by:
* Contributing to community- driven volunteer projects
* Developing your communication skills
* Learning about Costa Rica’s culture, food and history
* Discovering Costa Rica’s beautiful beaches, national parks and cities
Volunteer requirements:
* Volunteers must provide parental agreement to participate on the program.
* Independent volunteers aged 16 and 17 can join this project for 1 -3 weeks.
* Volunteers must provide two-character reference letters.
* All volunteers are required to have enough volunteer travel insurance.
* All volunteers must speak fluent English.
21. What will volunteers do in the camp?
A. Instruct dance lessons. B. Take guided nature tours.
C. Go on social activities. D. Visit some local communities.
22. How can participants benefit from the summer camp?
A. They can learn standard English. B. They can get money for their effort.
C. They can gain rich experience in teaching. D. They can better their skills in communication.
23. What is needed to apply for the camp?
A. Affording three- week free time.
B. Being accompanied by one parent.
C. Having previous related experience.
D. Offering two letters of recommendation.
