V. put a/an, the or _: 1. kate is teacher. her parents were teachers too. 2. chemistry was my favorite subject at school. 3. there is concert hall not far from our house. 4. my friends are planning holiday together. 5. when i was child i used to collect stamps. 6. mary teaches economics. 7. you need visa to visit great britain. 8. there was lot of snow on ground. 9. how well can cat see in dark. 10. he was awake all night with toothache. 11. mumps can be very unpleasant. 12. he went to sea when he was 18. 13. my mother often suffers from backache. 14. i love flowers. he bought me few flowers. 15. does helen speak french? 16. this cloth costs ten pounds meter. 17. what’s this? is it book or magazine? 18. he doesn’t want to go to hairdresser’s again. 19. – where’s tom? – he’s in dean’s office. 20. when did you see him last? 21. she was last to be invited to the office.