1. Is he peeling the potatoes? - Yes, he is.
2. Are they walking in the park? - No, they aren't.
3. Are you watching TV? - Yes, I am.
4. Is Martin washing the car? - No, he isn't.
5. Are Jane and Molly cleaning their rooms? - Yes, they are.
6. Is the washing - machine working? - No, it isn't.
7. Are you reading a magazine? - No, I'm not.
8. Is Victor writing a report? - Yes, he is.
9. Is Ann typing a document? - No, she isn't.
10. Is the sun shining? - Yes, it is.