Answer:
3. Alice hurt herself while she played football.
4. She fell while she ran after the bus.
5. I lose my wallet while I rode my bike.
6. We had dinner when the lights go out.
7. She thinks of something else while you talked to her.
8. Th firman fought the fire on the balcony below when he suddenly heard someone shouting.
9. I saw her while I looked out the window.
10. While the teacher gave instructions, the students looked at a spider climbing up the wall.
11. Sally had dinner last night when someone knocked at the door.
12. I began to study at seven last night. Fred arrived at 7:30. So I studied when Fred came.
13. My roommates parents called him last night while watching tv.
14 when my husband came home, I did the laundry.
15. While they walked home it began to rain, so they stopped at a small cafe and had a cup of coffee.
17. When I got home at around 2 o’clock, mum was in her garden. She planted some flowers and dad changed the oil of the car in the garage.
Hope this helps!!