IN , ON or AT

Complete this exersise like Dobby:

gif dobby 01.gif

  
If you please complete these phrases with the correct preposition on time and set Dobby free with 100% of your score.

Saturday
10:45
twelve o´clock
the evening
1 May
the 21st century
Wednesday
the weekend
12 o´clock
Saturday afternoon
Christmas
1964
6 July
the morning
November