问题
填空题
根据句意及首字母提示，补全单词。
1. Elephants are the most e animals in the world, I think.
2. It's important to r paper to save the trees.
3. The a____ animals should be put in cages.
4. Most people are a____ putting animals in the zoo.
5. That big zoo is s____ for animals to live in．
答案
1. endangered 2. recycle 3. aggressive 4. against 5. safe