
22.Which is about the environmental protection?
A.Trail Guards.
B.Oakley Cabin Tour Guide.
C.Ice Skating Instructional Assistant.
D.Organize Your Own Group Cleanup Project.
23.What do Projects 2 and 4 have in common?
A.They volunteer at least two months.
B.They are demanded of rich experience.
C.They will help learn about history.
D.They must be over 18 years old.