图文内容
1. B: Can you fly?
2. G: What can you do?
3. B: Can they swim?
4. G: Is it a tiger or a cat?
5. B: What are these?
继续学习
1. B: Can you fly?
2. G: What can you do?
3. B: Can they swim?
4. G: Is it a tiger or a cat?
5. B: What are these?