1) The concert was enjoyed very
much by the audience.
2) the cake was eaten by the little
boy.
3) our exercises are corrected by the teacher at home.
4) a dancing class was started by them last week.
5) this film will be seen soon by everybody.
6) our written works were returned to us by the teacher.
7) the tickets will be left at the box-office by Mr. Parker.
8) texts are translated during
English lessons by the students.
9) that book was taken from the
desk by Mary.
10) his picture will be finished soon by the painter.
11) the children were allowed by them
to go to the zoo.