Bonjour,
Le past perfect "had + pp" est utilisé pour une action antérieure à une autre qui sera au prétérit.
a• No one went to Church that morning because the Ku Klux Klan had burnt the whole building the day before.
=> le Ku Klux Klan a d'abord brulé le bâtiment donc les gens n'ont pas pu aller à l'église.
b• Before Rosa Park refused to give up her seat, two other activists had done the same and had stood up for their rights.
=> Les deux activistes l'ont fait avant Rosa Park
c• When segregation started, Blacks has gone through years of slavery, forced work and humiliation.
=> il y a d'abord eu l'esclavage avant la ségrégation
d• Barack Obama became the first American President in 2008. In his inaugural speech he paid a tribute to a great number of activists who had given their lives to help people.
=> il y a d'abord eu les activistes, avant que Barack Obama devienne président et leur rende hommage.
e• When I was young, my father told me he had met Martin Luther King in his school.
=> le père a d'abord rencontré Martin Luther King avant de le raconter à son fils.
