1. 根据句意及首字母完成单词。

1. （1） The elephants are in great d. We must save them.
3. （2） People are cutting d trees and elephants are losing homes.
5. （3） There is a bridge o the big river.
7. （4） Animals are very f. People mustn't kill them.
9. （5） She doesn't talk too much. She is kind of s.