viết lại câu từ chủ động sang bị động

muahahahahahThey started a dancing class last week.

• A dancing class was started last week.

Mr. Smith saw the accident.

• The accident was seen by Mr. Smith.

Somebody has taken my briefcase.

• My briefcase has been taken.

The teacher returned our written work to us.

• Our written work was returned to us by the teacher.

She has finished the report by noon.

• The report has been finished by noon.

The mad dog bit the little boy.

• The little boy was bitten by the mad dog.

The police have arrested five suspects.

• Five suspects have been arrested by the police.

The doctor ordered him to take a long rest.

• He was ordered to take a long rest by the doctor.

They started a dancing class last week.

• A dancing class was started last week.

Mr. Smith saw the accident.

• The accident was seen by Mr. Smith.

Somebody has taken my briefcase.

• My briefcase has been taken.

The teacher returned our written work to us.

• Our written work was returned to us by the teacher.

She has finished the report by noon.

• The report has been finished by noon.

The mad dog bit the little boy.

• The little boy was bitten by the mad dog.

The police have arrested five suspects.

• Five suspects have been arrested by the police.

The doctor ordered him to take a long rest.

• He was ordered to take a long rest by the doctor.

They are sweeping the streets.

• The streets are being swept.

The mailman had already delivered the mail.

• The mail had already been delivered by the mailman.