People speak English here.
English is spoken here (by people)
Gustave Eiffel built the Eiffel Tower in 1887
The Eiffel Tower was built in 1887 by Gustave Eiffel.
Someone sends John a mysterious letter.
A mysterious letter is sent to John by someone.
The Chinese invented gunpowder.
Gunpowder was invented by the Chinese.
They cut down thousands of trees every day
Thousands of trees are cut down every day.
The police arrested five thieves yesterday.
Five thieves were arrested yesterday.
Many people see the UFO in this area.
The UFO is seen by many people in this area.
My cat kills 10 mice each week.
10 mice are killed by my cat each week.
Bees sting humans all summer.
Humans are stung by bees all summer.
They invented the TV in the 20th century
The TV was invented in the 20th century.
Tim use the new computer.
The new computer is used by Tim.
A blue car ran over my dog.
My dog was run over by a blue car.
Smoking kills millions of people every year.
Millions of people are killed by smoking every year.
The doctor told my father to stop smoking.
My father was told to stop smoking by the doctor.
She writes a test today.
A test is written today by her.
We have bought the tickets for the concert.
The tickets for the concert have been bought by us.
Factories dump tons of waste in the sea.
Tons of waste are dumped into the sea by factories.
The police gave her the bad news yesterday.
The bad news was given to her yesterday by the police.
You make a lot of mistakes.
A lot of mistakes are made by you.
The doctor is examining the patient.
The patient is being examined by the doctor.