1. It's a big factory. Five hundred people are employed there.
2. Did somebody clean this room yesterday?
3. Water covers most of the earth's surface.
4. How much of the earth's surface is covered by water?
5. The park gates are locked at 6.30 p.m. every evening.
6. The letter was sent a week ago and it arrived yesterday.
7 The boat hit a rock and sank quickly. Fortunately everybody was rescued.
8. Robert's parents died when he was very young. He and his sister were brought up by their grandparents.
9. I was born in London, but I grew up in Canada.
10. While I was on holiday, my camera was stolen from my hotel room.
11. While I was on holiday, my camera disappeared from my hotel room.
12. Why did Sue resign from her job? Didn't she enjoy it?
13. Why was Ben fired from his job? Did he do something wrong?
14. The company is not independent. It is owned by a much larger company.
15. I saw an accident last night. Somebody called an ambulance but nobody was injured, so the ambulance wasn’t needed.
16. Where were these pictures taken? In London? Did you take them, or somebody else?
17. Sometimes it's quite noisy living here, but it's not a problem for me – I am not bothered by it.