В этом упражнении нужно составить предложения в Past Continuouns(прошедшее продолжительное время). В этой форме глагол to be ставится в Past Simple(was/were), а дополнительный глагол ставится в Present Continuous(V+ing)
1. Grandma wasn't listening to music. She was chatting on the phone.
2. Mary was watching film on TV.
3. The dog was eating under the table.
4. Tom and Jen were fighting for the remote control.
5. Mum wasn't reading newspaper. Her wasn't in room.
6. Grandad and the cat were sleeping.