`22.` Some of my books have been taken away.
`23.` The meeting will be held before the May Day.
`24.` The engine of the car has to be repaired.
`25.` The window was broken and some pictures were taken away by the boys.
`26.` A lot of money is spent on advertising every day.
`27.` This room may be used for the classroom.
`28.` A story is going to be told by the teacher.
`29.` The cake is being cut with a sharp knife by Marry.
`30.` The women with a red hat was looked by the children.
`31.` My hat used to be pulled over my eyes by her.
`32.` For the past years, all my washing has been done by hand.
`33.` A nest has been built in the porch by a pair of Robins since last week.
`34.` The murderer has not been found by the police yet.
`35.` One of her paintings was sold at $1000.
`36.` Your gloves will be put back in the drawer.
`37.` English is spoken in almost every corner of the world.
`38.` The machine mustn't be used after 5.30 p.m.
`39.` Luckily for me, my name wasn't called.
`40.` After class, the chalk board is always erased by one of the students.
`41.` The wall must be cleaned before you paint it.
`42.` The new pupil was told where to sit.
`43.` I knew that he had been told of the meeting.
`44.` I have not been ever treated with such kindness.
`45.` This story is not believed.
`46.` The dam may be broken by a sudden increase in water pressure.
`47.` Good care of books borrowed from the library must be taken.
`48.` I was told about it by a man I know.
`49.` He can never be found at home for he is always on the move.
`50.` Milk is used for making butter and cheese.
$\text{Đây là bài tập câu bị động!}$