The doctor examined the patients.
The patients were examined by the doctor.
The company launched a new product.
A new product was launched.
The chef prepared a special dish.
A special dish was prepared.
The museum displayed some rare aircrafts.
Some rare aircrafts were displayed.
The chef cooked a delicious meal.
A delicious meal was cooked for the guests.
The hotel staff cleaned the rooms.
The rooms were cleaned by the hotel staff.
The athlete broke the world record.
The world record was broken.
The artist created the paintings.
The paintings were created by the artist.
The band played a sold-out concert.
A sold-out concert was played by the band last night.