Réponse :
1- Bicycles must no be left in the driveway by children
2- Shoes are being made in that factory
3- The skyscraper was bulit en 1934
4- Refreshements are going to be prepared by Karen
5- Electrical instruments must be worked on carefully
Explications :
En anglais mettre une phrase à la voie passive consiste à mettre l'objet du verbe en tant que sujet, et le sujet en tant que complément.