Passive voice + PRESENT
the song / sing / by the singer
the song is sung by the singer
the car / wash
the car was washed
these computers / sell
these computers are sold
dinner / serve
dinner was served
the shops / close / the owner
the shops are closed by the owner
the rubbish / throw away
the rubbish was thrown away
the car / stop
the car is stopped
the cats / feed
the cats were fed
the food / eat
the food is eaten
the letter / send
the letter was sent
the tables / clean
the tables are cleaned
the table / set
the table was set
The secretary prints the documents.
the documents are printed by the secretary.
He read the book.
the book was read (by him)
Students turn off the lights when they leave.
the lights are turned off by students
The parents picked up the children.
the children were picked up by their parents.