1. It is very cold AT winter in Russia.
2. I go to my English class IN Tuesdays and Thursdays ON 7 o'clock. ;
3. They meet with their friends IN the weekend.
4. All the family meets in Sevilla IN Easter.
5. He gets up very early ON the morning.
6. I'm seeing the dentist IN 10 o'clock.
7. I was born IN 22n July, 1977.
8. He works in a factory ON night.
9. School finishes ON July and starts again ON September. ;
10. I'm going to the theatre IN Friday evening.