41,3 Put the verb into the correct form…

41,3 Put the verb into the correct form, present simple or past simple, active or passive. 1. It's a big factory. Five hundred people _are employed_ (employ) there. 2. Water — (cover) most of the Earth's surface. 3. Most of the Earth's surface — (cover) by water. 4. The park gates — (lock) at 6,30 p.m. every evening. 5. The letter — (post) a week ago and it — (arrive) yesterday. 6. The boat — (sink) quickly but fortunately everybody — (rescue). 7. Ron's parents — (die) when he was very young. He and his sister — (bring) up by their grandparents. 8. I was born in London but I — (grow) up in the north of England. 9. While I was on holiday, my camera — (steal) from my hotel room. 10. While I was on holiday, my camera — (disappear) from my hotel room. 11. Why — (Sue/resign) from her job? Didn't she enjoy it? 12. Why — (Bill/sack) from his job? What did he do wrong? 13. The company is not independent. It — (own) by a much larger company. 14. I saw an accident last night. Somebody — (call) an ambulance but nobody — (injure) so the ambulance — (not/need). 15. Where — (these photographs/take)? In London? — (you/take) them?