Wild Blue is a none-of-a-kind, geography-oriented exploration and adventure center for children aged 3 through 10．Our mission is to immerse(使沉浸于)children and their families in experiences that relate to the people，places and natural elements of the wonderful planet we live on．All our programs are developed and led by our own world-class team of explorers and educators．The following is a brief introduction to some of our classes：    
Global Kitchen
All over the world，people gather together to share meals．In this class, children will learn about the cuisine of a foreign country or region while they create a delicious snack． Recipes will be kid-friendly, and use ingredients(原料)from the country of origin．Your child will learn healthy，easy-to-create recipes he can bring home to share!
Documentary Filmmaking
This 50-minute video documentary film class is specially designed for our 6and 7 years old explorers．Classes will concentrate on the basics of visual storytelling and include subject discovery, story development, storyboard, filming，editing and presenting．Participants will work as a team to produce their own documentary, which will then be screened for friends and family at the course’s conclusion．
Exploring the Wonders of Earth
Designed specifically with our youngest explorers in mind, this semester-long program will expose your child to a wide variety of exciting scientific events that occur on our planet，from chocolate melting，to volcanoes erupting，to seeds sprouting．Through this course children will begin to develop an awareness of the science that makes the earth a marvelous place．
A World of Arts and Crafts
Whether you are seeking to simply extend your child’s time at Wild Blue or looking for a favorite pastime，we offer our own unique version of arts and crafts．Focusing on using found objects，this course encourages children to draw creative inspiration from cultures around the world．This course is available，upon request, as an additional class in your child’S schedule．
68．We can know from the passage that Wild Blue      
A．aims to urge people to protect the environment
B．is specially designed for children and teens
C．focuses on the relationship between people
D．permits adults to participate in its activities
69．Children who study documentary filmmaking     ．
A．are supposed to work in teams
B．have to sign up with several friends
C．will learn everything about filmmaking
D．will make a documentary on their family
70．Those who take the“Exploring the Wonders of Earth” course can       ．
A．learn to make chocolate
B．see volcanoes erupting in person
C．know more about exciting scientific events
D．make the world more marvelous
71．A World of Arts and Crafts is designed       ．
A．for new beginners with artistic talent
B．for children to improve their drawing style
C．to help children learn about arts and cultures
D．to teach children how to spend their spare time