UNIT 8. 8B, page 67
Exercise 1
1 are served
2 were given
3 wore
4 has made
5 is being cleaned
6 had arranged
7 has been built
8 will be cancelled
Exercise 2
1 are lost
2 has been reduced
3 was announced
4 will be closed
5 were stopped
6 is used
7 had been stolen
8 will be taken
Exercise 3
1 was written by Charles Dickens.
2 has been damaged by vandals.
3 will be added to the train at the next station.
4 had been left at baggage reclaim.
5 are sold by low-cost airlines.
6 are being repaired so there aren’t any trains.
Exercise 4
1 was made
2 had been demonstrated
3 has been invested
4 have been produced
5 are sent
6 was introduced
7 is used
8 are being discovered
9 will be replaced