The teacher explains the lesson clearly.
The lesson is explained clearly (by the teacher).
I need to clean the house this weekend.
The house needs to be cleaned this weekend.
People say that dolphins are intelligent.
The coach gave the players a motivational speech.
The book was read by millions of people worldwide.
Millions of people worldwide read the book.
The chef prepared a delicious meal.
A delicious meal was prepared (by the chef).
She enjoys people complimenting her artwork.
She enjoys being complimented on her artwork.
Experts believe the economy will recover soon.
The teacher showed the class a new experiment.
A solution will be found by the scientists.
The scientists will find a solution.
Scientists will discover new species in the ocean.
New species will be discovered in the ocean (by scientists).
They expect us to finish the project by Friday.
The project is expected to be finished by Friday.
They think she will win the competition.
They offered her the job last week.
The room is being cleaned by the staff right now.
The staff is cleaning the room right now.
They are building a new stadium.
A new stadium is being built (by them).
The manager decided to promote John.
John was decided to be promoted by the manager.
Scientists know that climate change affects biodiversity.
The manager sent the employees an email about the meeting.
The homework has been completed by the students.
The students have completed the homework.
The company gave the employees a bonus.
I dislike people interrupting me when I’m working.
I dislike being interrupted when I’m working.
Many people consider him a great leader.
The judge awarded the winner a trophy.
The window was broken by a baseball.
A baseball broke the window.