Chuyển các câu sang bị động
1. My briefcase has been taken.
2. Our written work was returned to us by the teacher.
3. Her report had been finished by noon.
4. The little boy was bitten by the mad dog.
5. Five suspects have been arrested by the police.
6. He was ordered to take a long rest by the doctor.
7. The house was strucked by lightning.
8. Their friend has been met by a group of students at the railway station.