1. I was born [?] 21st September.
2. What are you going to do [?] Friday?
3. The train arrives [?] 10 o´clock.
4. What are you doing [?] the weekend?
5. Do you work [?] Saturdays?
6. I get up [?] 8 o´clock every morning.
7. My birthday is [?] April.
8. We ´ll meet [?] the afternoon.
9. I don´t like going out [?] night.
10. My garden is the most beautiful [?] spring.
11. What do you usually eat [?] Christmas?
12. America was discovered [?] 1492.