II. CHOOSE THE CORRECT PREPOSITION FOR EACH TIME PHRASE.
1. in / on Summer
2. between / before the meal
3. at / in the afternoon
4. in / on 2006
5. at / in the weekend
6. before / between 3p.m and 6p.m
7. in / on September
8. at / on 6.50 p.m
9. at / in Winter
10. at / in Christmas
11. at / in night
12. at / on midnight
13. in / on September 5th
14. at / on my birthday
15. in / on Tuesday morning
16. in / on Valentine’s day
17. in / on July, 14th 2007
18. at / in the middle of the night
19. after / between the class
20. at / in 7 o’clock