`1.` Some trees have been planted by the gardener.
`2.` The crystal vase has been broken down.
`3.` He has been brought up to be polite by his parents.
`4.` Mrs. Jones has been given some letters by the secretary.
`5.` Our door had been broken down.
`6.` A second-hand car has been sold Ted by Bob.
`1.` This work must be done right away.
`2.` Her house was sold last year.
`3.` He will be met at the airport by us.
`4.` My briefcase has been taken.
`5.` Rice is planted in that country.
`6.` I am being asked a lot of questions.
`7.` The wine should be opened about an hour before being used.
`8.` Christmas songs were performed for people in town.
`9.` The food is being cooked in the kitchen by my mother.
`10.` The bridge across the river should be built.
`11.` The computer is being used at the moment.
`12.` Her car was repaired yesterday.
`13.` Their bikes must not be left in the hall.
`14.` The books have been packed.
`15.` The bicycle was bought last year.