Answer:
corrigé
Explanation:
The sentence "notre professeur a __ les papiers" means our professor is doing something with papers (most likely tests or homework that needs grading). As such corrigé, which means "to correct", is the best choice.
Partagé means "to share", Nettoyé means "to clean", and Effacé means "to erase", none of which being logical choices.
