1. A fish uses its tail for swimming.

2. A fish uses his tail for swimming.
3. A fish uses her tail for swimming.
[Can we use all the expressions, its, his, her?]

4. I have several balls. I have two dogs. The balls are theirs.
5. I have several balls. I have a pet dog. The balls are his.
[Can we use 'theirs' and 'his' in each sentence?]

1 answer

1. A fish uses its tail for swimming.
2. A fish uses his tail for swimming.
3. A fish uses her tail for swimming.
[Can we use all the expressions, its, his, her?]

4. I have several balls. I have two dogs. The balls are theirs.
5. I have several balls. I have a pet dog. The balls are its.
6. I have several balls. I have a pet dog. The balls are his.
7. I have several balls. I have a pet dog. The balls are hers.
[Can we use 'theirs' and 'its' in each sentence? Can we use his or hers instead of its?]