2.

1. Can I swim?
2. Can he dance?
3. Can they jump?
4. Can the birds fly?
5. Can the chimp swing?

3.

1. A bird can sing.
2. I can't climb like a chimp.
3. Can you swim?
4. He can't jump.
5. Can he run like a horse?

4.

1. I can dance. I can't fly. I am happy.
2. My dog can dance. My dog can't fly. My dog isn't sad.
3. My mummy can dance. My mummy can't fly. My mummy isn't sad.
4. Lica can dance. Lisa can't fly. Lisa isn't sad.
5. He can dance. He can't fly. He isn't sad.