HEY THERE.
THE ANSWER IS
Imparfait = what was happening all around you (including you), background. Also ongoing events, habits, what used to be.
Passé composé = what took place at that very moment: a specific event or a succession of specific events, the main storyline.
Blalbal askip je suis tu es ma t’a tu on on on
Translation: They work in England
Khat: a leaf that is a mild stimulant when chewed