A child could not have done this mischief.
Choose the correct passive voice.
Use could not have been + past participle.
Do not beat the dog.
Choose the correct passive construction.
For a negative imperative, use Let + object + not be + past participle.
Work hard.
Choose the correct passive construction.
An imperative can be changed using 'You are advised to...'.
Harry ate six shrimp at dinner.
Choose the correct passive voice.
Use simple past passive; 'shrimp' is plural here.
They will inform the police.
Choose the correct passive voice.
Future passive uses will be + past participle.
Did the choir really enjoy that piece?
Choose the correct passive voice.
A simple past question becomes was/were + past participle.
Some people do not raise sugar cane in Hawaii.
Choose the correct passive voice.
Simple present negative passive uses is not + past participle.
You should open the bottle about three hours before it is used.
Choose the correct passive voice.
Use should be + past participle and retain the time clause.
We are going to watch a movie tonight.
Choose the correct passive voice.
Be going to passive uses is/are going to be + past participle.
I ran the obstacle course in record time.
Choose the correct passive voice.
Simple past passive uses was + past participle.
The entire stretch of highway was paved by the crew.
Choose the correct active voice.
Change the simple past passive into simple past active.
She makes cakes every Sunday.
Choose the correct passive voice.
Simple present passive uses is/are + past participle.
Susan will bake two dozen cupcakes for the bake sale.
Choose the correct passive voice.
Future passive uses will be + past participle.
She spoke to the official on duty.
Choose the correct passive voice.
Keep the prepositional phrase with the object being spoken to.
I think that someone built the house in 1814.
Choose the correct passive voice.
The agent is unknown, so it can be omitted.
James Watt discovered the energy of steam.
Choose the correct passive voice.
Simple past passive uses was/were + past participle.
The victory will be celebrated by the team tomorrow.
Choose the correct active voice.
Change will be celebrated into will celebrate.
I cannot accept your offer.
Choose the correct passive voice.
Modal passive uses cannot be + past participle.
The doctor advised the patient not to eat rice.
Choose the correct passive voice.
Use was advised + not to + verb.