听下面一段独白,回答问题。 1. Where do tree-frogs live? [ ] A. They live in trees. B. They only live in water. C. They live in the ground. 2. What are tree-frogs good at? [ ] A. Running. B. Swimming. C. Jumping. 3. Which one can jump highest? [ ] A. The cat. B. The tree-frog. C. The frog. 4. Why are tree-frogs strange? [ ] A. Because they have long legs. B. Because they can change their colours. C. Because they have big feet. 5. What will happen if we don't protect the tree-frogs? [ ] A. There will be no tree-frogs. B. There will be more and more tree-frogs. C. There will be no difference to tree-frogs.