People eat pancakes on Easter. → People eat pancakes at Maslenitsa.
Люди едят блины на Масленицу.
Victory Day is in December. → Victory Day is in May.
День Победы в мае.
People paint eggs at Maslenitsa. → People paint eggs at Easter.
Люди красят яйца на Пасху.
Ответ: Исправленные предложения выше.