Ответ:
1. She is watching tv
2. they are coming out of the house.
3. Is Marry writing a letter?
4. The boys are running to school
5. Mother is making a cake.
6. Are The girls sitting in the living room?
7. We aren't going to the cinema
8. Are Tom and Jane singing a song?
9. My brother isn't listening to the radio
10. Are they cleaning the house?
11. Jim is riding a bicycle