1. Somebody cleans the room every day.
The room is cleaned every day.
2. They cancelled all flights because of fog.
All flights were cancelled because of fog.
3. People don't use this road much.
This road isn`t used much.
4. Somebody accused me of stealing money.
I was accused of stealing money.
5. Somebody warned us not to go out alone.
We were warned not to go out alone.