at, in, on 1) I like to be with my family ... Christmas. 2) People in Russia don't celebrate Christmas ... December, they celebrate it ... January. 3) All my family are very busy ... New Year's Eve. 4) We were going to buy New Year gifts ... the afternoon. 5) People believe that Santa visits their houses ... midnight. 6) ... Sunday morning everything was ready for the holiday.

Ответ (EN):

1. I like to be with my family at Christmas.
2. People in Russia don't celebrate Christmas in December, they celebrate it in January.
3. All my family are very busy on New Year's Eve.
4. We were going to buy New Year gifts in the afternoon.
5. People believe that Santa visits their houses at midnight.
6. On Sunday morning everything was ready for the holiday.

Перевод (RU):

1. Я люблю быть со своей семьей на Рождество.
2. В России не празднуют Рождество в декабре, его празднуют в январе.
3. Вся моя семья очень занята в канун Нового года.
4. Мы собирались купить новогодние подарки днем.
5. Люди верят, что Санта посещает их дома в полночь.
6. В воскресенье утром все было готово к празднику.