Fill in the gaps with the prepositions in, at, on if necessary.

Example: My birthday is on the fourth of November. What about you?
I have a test – (no preposition) tomorrow, so I can’t be late.

I will go to university _____ 2027.
My mother was born in Saint Petersburg _____ 1985.
Little babies usually take a nap _____ the afternoon.
_____ Saturday I have training, sorry.
We must hurry! Our parents will be back _____ an hour.
_____ Easter we bake kulich and paint a lot of boiled eggs.
Julia is doing homework and _____ the same time is chatting with Susie.
It is summer holidays _____ next month, I can’t wait!
– When is the Equinox day? – Next is _____ the 23rd of September.
I study _____ all day, so I rarely have time to play.​