27, Our rooms aren't cleaned (by us).
28, The window isn't going to be opened by the teacher.
29, The pupils are punished by John.
30, This room is being cleaned.
31, Football isn't being played (by us).
32, The coffee is made by Louise.
33, The special cameras weren't shown to me. or I wasn't shown the special cameras (by you).
34, Tom wasn't allowed to take those books home by the librarian.
35, We were asked many difficult questions (by him).
