Réponse :
Bonjour,
Dans cet exercice, il faut mettre le verbe au prétérit à la voix passive.
La voix passive se forme :
Sujet + Be conjugué au temps voulu + participe passé + ( complément d’agent introduit par « by » )
==> WAS /WERE + participe passé
Participe passé verbes réguliers = base verbale + ed
Participe passé verbes irréguliers = 3ème colonne des verbes irréguliers
a. Slaves were forced to work hard on the plantations.
b. This book was written by a former slave.
c. The museum was created to tell about that period.
d. I was told that many masters were cruel.
