12. 1
2. at 9:30 she was reading the newspaper.
3. at 11:00 she was cleaning her apartment.
4. at 1:00 she was having lunch.
5. at 3:00 she was washing some clothes.
6. at 5:00 she was watching TV.
12.2
1. Ann was writing a letter at her room.
2. George was getting ready to go out.
3. Carol and Denis were having dinner.
4. Tom was making a phone call.
12. 3
1. The phone rang while I was taking a shower.
2. It began to rain while I was walking home.
3. We saw an accident while we were waiting for a bus.
12. 4
1. George fell off a ladder while he was painting the ceiling.
2. Last night I was reading in bed when suddenly I heard a scream.
3. Where you watching TV when I called you?
4. Ann was waiting for me when I arrived.
5. I wasn't driving very fast when the accident happened.
6. I broke a plate last night. I was washing the dishes when it slipped out of my hand.
7. Tom took a picture of me while I wasn't looking.
8. We didn't go out because it was raining.
9. What were you doing at this time yesterday?
10. I saw Carol at the party. She was wearing a new dress.