Fill in prepositions of time “AT / IN / ON” as in the example

Fill in prepositions of time “AT / IN / ON” as in the example:
1. .. on … Saturday 8. ………… 9 o’clock 15. ………… autumn
2. ………. July 9. ………… Christmas 16. ……….. half past two
3. ………. 1984 10. ………… September 28th 17. ………… Monday morning
4. ………. March 25th 11…………. 1991 18. ………… Easter
5. ………. Friday 12. ……….. August 29th 19. …………10 o’clock
6. ………. summer 13. ……….. winter 20. …………Thursday afternoon
7. ………. the morning 14. ……….. the evening 21. ………… noon
B) Fill in “AT / IN / ON” as in the example:
1. …in….. December 6. ………… February 8th 11. ………… a quarter past six
2. ………. midnight 7. ………… noon 12. ………… Saturday night
3. ………. 1982 8. ………… 1964 13. ………... Friday evening
4. ………. April 9. ………… spring 14. ……….. Monday
5. ………. April 2nd 10. ……….. night 15. ……….. June 26th