1. Christmas is celebrated ______ 25th December.
2. We go to bed ___ night.
3. It's always hot ___ summer.
4. The movie starts at two ___ the afternoon.
5. Autumn begins ___ September.
6. They were married ___ 1990.
8. It has not rained at all ___ two weeks.
9. Breakfast is served ___ seven o'clock.
10. Kevin and Joe have been in the same class ___ first grade.
