Prepositions in/on/at

At: hours
      Olidays
On: Days
       Dates
In: Months
     Seasons


1- I go to the soccer stadium on Sundays

2- He surfs the Net on the evening

3 I usually go to bed at 10 ó clock

4 We go on vacation in August

5 I meet my friends on weekends

6 His birthday is on march 1st

7 I don´t usually sleep at noon

8 He goes to school on weekdays