30. The woman with the red hat is looked at by the children.

31. For the past years, all my washing has been done by hand.

32. A nest has been built by a pair of robins in the porch since last week.

33. The murderer hasn't been found by the police yet.

34. One of her own paintings was sold by them at $1,000.

35. Your gloves will be put back (by me) in your drawer.

36. English is spoken by people in almost every corner of the world.

37. This machine mustn't be used after 5:30 p.m.

38. Luckily for me, my name wasn't called.

39. After class, the chalkboard was always erased by one of the students.

40. The wall must be cleaned before you paint it.

41. The new pupil was told (by them) where to sit.

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Chúc em học tốt!!!!

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 30

The woman with the red hat is looked at by the children.

31 For the past years, all my washing has been done by hand

32. A nest has been built by a pair of robins in the porch since last week.

33. The murderer hasn't been found by the police yet.

34. One of her own paintings was sold by them at $1,000.

35. Your gloves will be put back (by me) in your drawer.

36. English is spoken by people in almost every corner of the world.

37. This machine mustn't be used after 5:30 p.m.

38. Luckily for me, my name wasn't called.

39. After class, the chalkboard was always erased by one of the students.

40. The wall must be cleaned before you paint it.

41. The new pupil was told (by them) where to sit.