Ответ:

1)

1. was reading

2. were playing

3. were eating

4. was taking

5. was chasing

2) 1. He wasn't reading, he was sleeping

2. They weren't playing cards, they were playing football

3. They weren't eating, they were talking

4. She wasn't taking a photo, she was listening to music

5. It wasn't chasing a cat, it was eating a sandwich