1 This factory wasn’t built by the Greens during the Second World War.
2 This house and these cars are going to be painted for Christmas day by the Greens.
3 The cats had been fed by Ann before she went to the cinema.
4 The pollution problems have been discussed by the students since last week.
5 Has the most valuable painting in the national museum been stolen by the thieves?
6 The new president will be interviewed on TV.
7 How many languages are spoken in Canada by them?
8 Are those shoes going to be prepared by you?
9 Have the above sentences been finished?