1. Columbus discovered America in the 15th century.
2. In England children go to school at the age of five.
3. If there are no clouds, you can see the stars at the night.
4. I haven't seen Anna for some days. Last time I saw her on Wednesday.
5. I won't be home in the morning. Call me, please, Monday evening.
6. We'll go to the theatre on February 14, we usually go out somewhere this day.
7. Mike works a lot during the week, he rests at the weekend.
8. I don't like when someone calls you during the lunch time.
9. We always have a party at the Christmas, during the Christmas holidays no one works.
10. Hurry up! We're leaving in five minutes.
11. Phone and door bell rang at the same time.
12. I invite you to dinner at the restaurant on your birthday.