1. Jill slipped as she was getting off the bus.

2. Jill slipped while she was getting off the bus.

3. Jill slipped when she was getting off the bus.

4. The thief was seen as he was climbing over the wall.

5. The thief was seen while he was climbing over the wall.

6. The thief was seen when he was climbing over the wall.

7. As the day went on, the weather got worse.

8. while the day went on, the weather got worse.

9. When the day went on, the weather got worse.

10. I began to enjoy the job more as I got used to it.

11. I began to enjoy the job more while I got used to it.

12. I began to enjoy the job more when I got used to it.

13. I cut myself as was shaving.

14. I cut myself while was shaving.

15. I cut myself when was shaving.