Answer:
@grlpower you are deleting my answer without any reason!
Feudalism helped protect communities from the violence and warfare that broke out after the fall of Rome and the collapse of strong central government in Western Europe. Feudalism secured Western Europe's society and kept out powerful invaders. Feudalism helped restore trade. Lords repaired bridges and roads.
Everyone
done his or her homework.
Explanation:
Everyone is singular and, therefore, require singular verb.
