11. Someone has made all the arrangements.
12. When did they manufactured this radio?
13. I couldn't find them anywhere.
14. Do they teach mathematics in this school?
15. Fortunately the accident didn't damage the machinery.
16. Please wait here while they are examining your luggage.
17. How do they make candles?
18. For a long time they believed the earth to be flat.
19. Did your teacher teach you how to apply this theory?
20. They said that apples are good for our health.
21. Don't let the children teased the dog.
22. Red is believed to be the symbol of luck.
23. What have they done to help the poor in this city?
24. Someone must have stolen the jewelry while she was out.