Sumusulong SA wikang bernakular

Can somebody fully explain the “le passé composé régulier et irrégulier avec avoir” thing to me

Bonjour! imagine you’re a teacher and your classroom is really cluttered. in a note to the janitor, tell him a few things that you don’t need and a few things to keep in your classroom. be sure to mention at least 7 total classroom objects. feel free to mention why you do or do not need those objects. (in french i assume but it does not say) (i would like this to be in french just in case you)

01.04 mc) fill in the blank with the letter or the combination of letters that would make the following sound "ay" and complete the sentence. nous sommes avec mes parents mes cousins.