Помогите решить
in “in”, “at” or “on”
1. ____6 o’clock
2. ____night
3. ____Wednesday
4. ____1987
5. ____November 20th
6. ____winter
7. ____Monday
8. ____the afternoon
9. ____Friday
10. ____midnight
11. ____ Eid
12. ____spring
13. ____Christmas
14. ____ Friday
15. ____1990
16. ____December
17. ____autumn
18. ____the evening
19. ____Monday
evening
20. ____3 o'clock
21. ____noon