Номер 3) Надобно вставить предлоги. Помогите пожалуйста

What do you write to your sweetheart on St. Valentine Day?
Jack London, an American writer, was born in 1876
Are you always at home on New Year's Eve?
In June it is not very dark in St. Petersburg at night
On Thursday night all the boys gathered in the living room
How many classes have you got on Friday?
Let's meet in the afternoon. Why at noon? Let's meet in the evening
That day at four o'clock a strong wind was blowing
We usually stay at home on the New Year 's Day
Do you give your friends presents at Easter?
At midnight , when the clock struck twelve, there came a knock on the door
A lot of people go to church at Christmas, especially on Christmas Day