Complete the sentence .
The Eiffel Tower ___ (build) in 1889.
was built
What verb do we always use in the passive voice?
Be
When a type of animal or plant is in danger of becoming extinct.
Endangered
The first dinosaur fossil ___ (discover) in 1824.
was discovered
What is missing? "The museum ___ built in 1950."
was
When a type of animal or plant no longer exists anywhere on Earth. For example, dinosaurs are … because there are no more dinosaurs alive today.
Extinction
The Pyramids of Egypt ___ (build) by the ancient Egyptians.
were built
What is the past participle of “find”?
found
The hard parts inside our bodies (and the bodies of animals) that give us shape and support. … are what make up our skeleton.
Bones
The song____(write) by a well-known artist
was written
What happens to the object in an active sentence when we change it to passive?
It becomes the subject.
The soft hair that covers the bodies of some animals, like cats and bears. It helps keep them warm.
Fur
The first airplane ___ (fly) by the Wright brothers in 1903.
Was flown
Complete the rule: Passive voice is formed with "be" + ____.
past participle
Animals that have fur or hair and usually give birth to live babies. They also feed their babies with milk. Examples include dogs, cats,
Mammals