Ex 1

1. was shining

2. were having

3.was watching

4.were wearing

5.was playing

6.were wearing

7.was eating

8.was taking

Ex 2

1. Dash wasn't cleaning the kitchen. He was cleaning the bathroom

2. Mum wasn't preparing the food. She was doing the shopping

3. John wasn't washing the windows. He was organizing the music

4. Grandma and Granddad weren't making masks. They were making John's costume

Ex 3

1. Were they eating the cake? Yes they were

2. Were they smiling? Yes they were

3. Was the girl sitting on a chair? No she wasn't

4. Was she opening her present? No she wasn't

5. Was her brother sitting next to her? No he wasn't