Bonjour,
Je dois faire une trace écrite en anglais en utilisant l'obligation dans le passé.
J'y est passé la moitié de la nuit mais je ne comprends pas.
Pouvez-vous m'aider ?

Voici la trace écrite de base sans l'obligation dans le passé:

The event that led to the boycott was the arrest of Rosa Parks the day before.
The leader is Martin Luther King.
They boycotted the buses compagny. They refused to take the bus to go to work.
They took this action to protest to support Rosa Parks and to fight against segregation in buses.
Their action worked and the buses compagny changed their policies.
I think their action was effective and non-violent.

Voila merci d'avance de votre aide.
Bon week-end a tous.