Answer:
1. Her baby brother was looked after by her
2. The thief will be caught
3. We will be invited for Sharons party next Friday
4. This castle was built 400 years ago
5. A letter will be written by me
6. His house a broken into by someone
7. The far away far could be seen by them
8. We were woken up by the terrible noise
9. The town was destroyed during the war
10. Milk is made into cheese and butter by them
11. Your ring will be lost if you aren't careful
12. Her homework hasn't been done yet
13. A big birthday present can be sent by us
14. We may be invited
15. The drinks were shook by the barkeeper
16. The correct answer hasn't been found yet
17. The children were allowed to play in the garden by Mr Smith
18. Lunch won't be cooked by mother today
19. The house is being painted by them
20. My blouse must be ironed
21. The sandwiches must not be eaten by the pupils during the lesson
22. Bananas and oranges must be imported by us
23. The smoke far away could be seen by us
24. Toms room is kept tidy by him
25. Some sandwiches has alredy been made by him
26. We were woken up by a terribke noise in the street.
27. The old road was being repaired by them during the last holidays
28. The dustbins are emptied by them every second Thursday
29. The old oak tree hasn't been cut down yet
30. The parcel sent to the wrong address had made me angry
31. The postman was bit by our neighbours dog
32. The house in the mountains is going to be sold by them
33. Fred's nose was punched by the bully
34. The old garden fence is being repaired and painted by him
35. The beds must be made before the guests come
36. A book was given to me on my birthday by Simon
37. School uniforms must be worn by pupils in England
38. Lunch was not prepared by father yesterday
39. Lots of fruits will be eaten by us during winter because of the vitamins
Hope it helps:)