Завершите утвердительные предложения, используя оборот there is/ there are. 1. There

Окончите утвердительные предложения, используя оборот there is/ there are.
1. There . twenty-five students in this group. 2. There .. a lot of causes of bad teeth. 3. There . one window in this room. 4. There .. two doors in that classroom. 5. There .. five doctors here. 6. There .. a foreign student in our group. 7. There . a lot of cases of the grippe in winter. 8. There .. a bad tooth in his mouth. 9. There two causes of stomach ulcer. 10. There ..a lot of dentists at the conference. 11. There .. a lot of people here. 12. There a cause for his complaint. 13. There a doctor and two children in Room Six. 14. There two children and a doctor in this room.