21. The cupboard is usually locked carefully.

22. Many kinds of fruits are sold at the floating market in Can Tho.

23. Recycled plastic is used to make toys.

24. Christmas cards are often sent a week before Christmas Day.

25. The facsimile was inveted by Alexander Bain in 1843.

26. Everybody was questioned by the police in the house.

27. His report wasn't finished on time.

28. Was your window broken by this boy yesterday?

29. Were these trees planted lats year?

30. Their work wasn't completed yesterday.

31. The children weren't looked after properly.

32. When was this compass bought?

33. Who were these poems written by?

34. My piano is being repaired by my mother now.

35. An important experiment is being carried out by the scientists.

36. Many different paper products have been developed.

37. The letters have just been typed.

38. A new hospital has been built near the airport.

39. Has your room been tidied yet?

40. Who has this room been cleaned by?

21. The cupboard is locked carefully.

22. Many kinds of fruits are sold at the floating market in Can Tho.

23. Recycled plastic is used to make toys.

24. Christmas cards are often sent a week before Christmas Day.

25. The facsimile was inveted by Alexander Bain in 1843.

26. Everybody was questioned by the police in the house.

27. His report wasn't finished on time.

28. Was your window broken by this boy yesterday?

29. Were these trees planted lats year?

30. Their work wasn't completed yesterday.

31. The children weren't looked after properly.

32. When was this compass bought?

33. Who were these poems written by?

34. My piano is being repaired by my mother now.

35. An important experiment is being carried out by the scientists.

36. Many different paper products have been developed.

37. The letters have just been typed.

38. A new hospital has been built near the airport.

39. Has your room been tidied yet?

40. Who has this room been cleaned by?