Réponse:
Bonjour ducoup voici les réponses :
1. Great Britain and the USA celebrate Halloween
2. Halloween was originally created in Celts of Ireland
3. Halloween costumes , children in masks go from house and say Trick Or Treat if they don't win any sweets they will do something bad
4. People celebrate it in October more specifically October 31
5. They wear Halloween costumes as Witches, vampires and ghost
