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.

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.

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.