1.We always invite him to our place.
He is always invited to our place by us.
2. The students often see him in the club.
He is often seen in the club by the students.
3. They teach us English at the University.
We are teaches at the University by them.
4. People speak English all over the works (думаю здесь опечатка и надо “world”)
English is spoken all over the world by people
5. They clean the classrooms every day
The classroom is cleaned every day by them