Somebody has fixed the heating.
The heating has been fixed.
Somebody has finished the report.
The report has been finished.
Somebody has watered the plants.
The plants have been watered.
Somebody has cleaned the kitchen.
The kitchen has been cleaned.
Somebody has ordered new books.
New books have been ordered.
Somebody has prepared the meal.
The meal has been prepared.
Somebody has rented a flat.
A flat has been rented.
Somebody has turned on the air conditioning.
The air conditioning has been turned on.
Somebody has booked the holiday.
The holiday has been booked.
Somebody has sent the email.
The email has been sent.
Somebody has learned lessons.
Lessons have been learned.
Somebody has downloaded the song.
The song has been downloaded.
Somebody has taken the money.
The money has been taken.
Somebody has bought the presents.
The presents have been bought.
Somebody has made coffee.
Coffee has been made.