1. We were learning a new grammar rule at the last lesson.2. When did you see the accident? I was waiting for the bus.3. What were you doing when I rang?4. It was a lovely day on Sunday. The sun was shining brightly and the sky was clear of clouds.5. Alex was ill for the whole week.6. When I was listening to the music I heard the door bell.7. We were walking home in the rain.8. She didn't see me when I enetered the room. She was writing something.9. What did you do all day yesterday? We spent the whole day in the countryside.10. I looked at Tom and undertood that he didn't hear me.11. We were waiting for you all day. Where were you?12. Last year Frank had a bad habbit. He kept leaving his keys at home.