Choose the correct prepositions

1. I don't go to school [ ] Sunday.
2. My mother gets up [on|in|at] 6 o'clock [on|in|at] the morning.
3. Do you sleep [on|in|at] night?
4. [On|In|At] the evening, we always read an interesting story before we go to bed.
5. My lessons start [on|in|at] 8 o'clock every day.
6. I go swimming [on|in|at] Tuesday and Thursday.
7. Does your school finish [on|in|at] the afternoon?