Réponse :
1) Bullying is a difficult problem because the bullies can send anonymous messages so the person getting bullied doesn’t know their identity.
2) European and North American schools try to combat bullying by trying different systems.
3) If you are bullied, it is important to talk to somebody about it wether it’s a friend, a teacher or a parent.
Je parle anglais couramment alors je suis sûre que les réponses sont correctes :)