Переделать в другой залог: 1. they are organizing this kind of work at their laboratory. 2. all the way home he was being followed by a strange-looking man. 3. professor n. was being listened to with great attention.

1. This kind of work is being organized by them at their laboratory.
2. A strange-looking man was following him all the way home.
3. They (The students) were listening to Professor N. with great attention.