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.