Краткое пояснение: Преобразуем предложения, меняя глаголы в пассивный залог.
Example: Louise could close the wall. - A hole in the wall could be closed by Louise.
- Louise could clean it. - It could be cleaned by Louise.
- He opened the door. - The door was opened by him.
- Gavin could smell it from the kitchen. - It could be smelled by Gavin from the kitchen.
- The police photographed the scene. - The scene was photographed by the police.
- Somebody stole the car. - The car was stolen by somebody.