11) Make sentences using the Past Simple and the Past Continuous. Use "while" or "when."
Example: 1. I saw an accident while I was walking down the street. I was walking down the street when I saw an accident.
1. I was walking down the street when I saw an accident. 2. I did not meet my old friend while I was staying in Prague. 3. She walked into a tree while she was talking on her mobile phone. 4. He lost his wallet while he was shopping. 5. I broke a glass while I was doing the washing-up. 6. They ran out of petrol while they were driving home. 7. He broke the key while he was trying to open the door. 8. We heard the screams while we were not swimming.