Một số bài tập về câu bị động

1/They started a dancing class last week.
2/Mr.Smith saw the accident.
3/Somebody has taken my briefcase.
4/The teacher returned our written work to us.
5/She has finished the report by noon.
6/The mad dog bit the little boy.
7/The police have arrested five suspects.
8/The doctor ordered him to take o long rest.

1.A dancing class was started last week
2.The accident was seen by Mr.Smith
3.My briefcase has been taken
4.Our written work to our were returned by the teacher
5.The report has been finished by noon
6.The litter boy was bitten by the mad dog
7.Five suspects have been arrested by the police
8.He was ordered to take a long rest by the doctor