1. It was a cricket ball that broke the window.
2. The day on which I heard I’d got into my chosen university will never be fogotten.
3. The reason why Glynn became a social worker is to help people less fortune than himself.
4. What happened was that the driver didn't see the motorcyclist.
5. The person discovered America was Christopher Columbus.
6. What made me feel guity was seeing Patricia cry like that.
7. The first thing to do was decide where to meet.
8. The place where we go camping has lots of facilities.
9. Only when I had clreared the spare room could I start decorating.
10. Hardly had I put the phone down when it rang.
11. No sooner had the Watsons moved to London than they decided to get divorced.
12. It was Charlie that/ who told me about the website.
13. Rarely is it possible to buy a plane ticket at the last minute.
14. Not a single question did they ask me about my plans for the summer.
15. Under no circumstance will we allow the management to lower wages.
16. Mr. Holton wouldn't have operated if he had known the rumour was malignant.
17. No sooner had he arrived than things went wrong.
18. He was too tired to stay awake until the end of the film.
19. We were shocked to hear that an earthquake had occurred.
20. We have the decorators finish our first floor.
Or: We have our first floor finished by the decorators.