1.
swimming
studying
like
stopping
seeing
drinking
using
shopping
looking
clapping
smiling
flying
2.
1.were playing
2.was driving
3. was flying
4. were having
5. was riding
3.
1. There were not reading. Were they reading?
2. She wasn't drinking tea. Was she drinking tea?
3. We were not sleeping. Were we sleeping?
4. He wasn't doing his homework. Was he doing his homework?
5. You were not reading. Were you reading?
6. It wasn't walking. Was it walking?