阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。
A
StoryWalk at Lake Wilderness Arboretum
Lake Wilderness Arboretum and Maple Valley Library have partnered together to bring a StoryWalk to Maple Valley. StoryWalk is an innovative approach to encouraging people to get out and walk while enjoying wonderful children's books. With her wealth of experience, Sharon Chastain, the children's librarian at Maple Valley Library, selects the best children's books for the project. Then the pages are put in frames（配框） along Arboretum's Main Looping Trail, so as you walk, you can read the book one page at a time while enjoying being outside. Our hope is that this feature will provide people with a new way to see, learn and experience the amazing world that we live in.
The StoryWalk Project was created by Anne Ferguson of Montpelier and developed in cooperation with Kellogg Hubbar d Library. Since its start in 2007, the project has been warmly welcomed in 50 states and 12 countries.
March StoryWalk:
Looking for a reason to get outside? Take a walk at the Arboretum and read this month's StoryWalk selection, Trillions of Trees by Kurt Cyrus. This fun, rhyming story follows a brother and sister as they turn a misunderstood phone call into a way to improve their environment. Hard work, getting dirty, and accepting help from others lead the two on a journey of planting a trillion trees.
EVENT DETAILS
WHEN
March 9 9:00 am-5:00 pm
March 10 9:00 am-5:00 pm
March 11 9:00 am-5:00 pm
Click here for more information about the arrangement!
PRICE
Free
RECOMMENDED AGES
All ages
VENUE
Lake Wilderness Arboretum 22520 SE 248th St Maple Valley, WA 98038-60.
21. What can be known about the books for StoryWalk at Lake Wilderness Arboretum?
A. They are written for adults. B. They are chosen by a librarian.
C. They will be hidden in a local library. D. They will be awarded to some hikers.
22. What is the StoryWalk Project like?
A. It is popular. B. It is struggling.
C. It is short of money. D. Alt is open to writers only.
23. Where does the text most probably appear?
A. In a textbook. B. In a newspaper.
C. On the Internet. D. On a blackboard.
