1. We usually have a lot of work to do ON Monday and Tuesday.
2. ON the 22nd of December we have the shortest day.
3. There is a lot OF snow IN winter.
4. I often get up AT 8 o’clock.
5. I have my birthday IN August.
6. Our ship isn’t IN the port. It is AT sea now.
7. We often have thunderstorms IN summer.
8. We celebrate Christmas ON the 7th IN January.
9. We celebrate New Year’s Day IN January too.
10. We work ON weekdays, but AT weekends we have a rest.