Помоги мне вставить артикли a, an или нулевой артикль в предложениях из упражнения 5, а также вставить глаголы am, is или are в упражнении 6.

**5. A, an или нулевой артикль? (§11)** 1. It is an apple. 2. It is my apple. 3. It is an old doll. 4. It is an alligator. 5. It is a little alligator. 6. He is an economist. 7. She is a teacher. 8. That's a good idea. 9. It is an English song. 10. It is a Russian song. 11. These are oranges. 12. This is an orange. **6. am, is или are? (§15)** 1. This is an apple. 2. These are apples. 3. It is green. 4. I am a student. 5. She is a student. 6. We are students. 7. Olga and I are students. 8. His bag is on the desk. 9. My bags are in the bus. 10. I am from Russia. 11. I am OK. 12. He is ill. 13. We are friends. 14. Dennis is twelve. 15. She is an actress. 16. They are dentists. 17. I am at school. 18. Olga is at school. 19. Olga and I are at school. 20. Oleg and Ira are ready. 21. Larisa is late. 22. My name is Alla. 23. I am eleven. 24. You are ten.