Question

Fill in the gaps. Use at, in or on.
My birthday is _ 23 July.
_ this day I get up _ 9 o'clock and help my mother to clean the flat.
_ July we don't have school and my friends come _ 12 o'clock.
We play, sing and dance.

Answer 1

My birthday is on 23 July. 
on this day I get up at  9 o'clock and help my mother to clean the flat. 
in  July we don't have school and my friends come at 12 o'clock. 
We play, sing and dance.

Answer 2

My birthday is on 23 July.
  On this day I get up at 9 o'clock and help my mother to clean the flat.
In July we don't have school and my friends come at 12 o'clock.
We play, sing and dance.