1. Is Benny working on their computers?
- No, he is't. He is reading a report.
2. Are Bruse and Loretta talking on the phone and Sam and Clara looking at some posters?
-No, Bruse and Loretta are not. Bruse and Loretta are warking on their computers and Sam and Clara are looking at some posters.
3. Is Ed doing some some photocopying?
-Yes, he is.
4. Is Lillian reading a report?
-No, she is not. She is talking on the phone.