The document *was signed* (sign) by all parties yesterday.

The children *are being taught* (teach) English by the new teacher.

Our car *has been fixed* (fix) by the mechanic last week.

The windows *should be cleaned* (clean) every month.

New regulations *will be implemented* (implement) next year.

The house *was built* (build) in the 18th century.

The cake *has been eaten* (eat) by someone in the office.

The books *must be returned* (return) to the library by next Friday.

The instructions *were not followed* (not follow) correctly.

That song *has been played* (play) on the radio several times today.

The keys *might be left* (leave) on the table.

The cat *was being chased* (chase) by the dog when we arrived.

Many trees *have been planted* (plant) by our community this year.

The message *was delivered* (deliver) by the courier yesterday.

Homework *should be done* (do) before watching TV.

Exercise 2: Transform the following sentences into passive voice

The chef cooks the meals every day. -> The meals *are cooked* (cook) by the chef every day.

They cancelled the meeting due to bad weather. -> The meeting *was cancelled* (cancel) due to bad weather.

Someone will finish the project next week. -> The project *will be finished* (finish) next week.

We have delivered the package to your doorstep. -> The package *has been delivered* (deliver) to your doorstep.

They are constructing a new bridge over the river. -> A new bridge *is being constructed* (construct) over the river.

The secretary answers all the calls. -> All the calls *are answered* (answer) by the secretary.

Mary had fed the dogs before leaving. -> The dogs *had been fed* (feed) by Mary before leaving.

You must submit the assignments on time. -> The assignments *must be submitted* (submit) on time.

People saw him leave the building. -> He *was seen* (see) leaving the building.

The manager will review the report. -> The report *will be reviewed* (review) by the manager.

The company has launched a new product. -> A new product *has been launched* (launch) by the company.

They are painting the house this weekend. -> The house *is being painted* (paint) this weekend.

Tom had locked the door before going to bed. -> The door *had been locked* (lock) by Tom before going to bed.

They must fix the errors in the document. -> The errors in the document *must be fixed* (fix).

The students are organizing a charity event. -> A charity event *is being organized* (organize) by the students.