Task 15 Complete the sentences with the correct preposition: in, at or on! 1. Dinner is usually 7 0'clock. 2. We have long holidays ....... Summer. 3. When have we got Biology? Friday mornings. There's a school party 31st January. 4. 5. The 21st century. 6. 7. ******* We are The game is 9.45 Is there are party Your brother's birthday? 8. Where is he The moment? 9. Where are they? They are The class. 10. Your teacher isn't here ....... Present. ******* ******* ******* ****** ******* REVORED 11. There are usually a lot of parties. New Year's 12. He wasn't there The end of the concert. ******* 13. Where are you usually. The evening? And 14. Do you get any presents Christmas Day? 15. He was born ....... 1999. 16. We usually go there.... Weekends 17. He phoned me ....... Tuesday. 18. He gets up at 7 o'clock ....... Weekends. 19. She was in hospital....... that time. 20. The school party is ....... June 8th soweved ******* ******* ******* NONDP Spring. atav Night? 8 o'clock ....... the evening.​