Complete with am, is, or are.

Давай выполним упражнение: для каждого предложения напишем утвердительную форму (Affirmative) и отрицательную (Negative). 1. I am happy. / I am not happy. 2. You are my friend. / You are not my friend. 3. He is tall. / He is not tall. 4. She is a student. / She is not a student. 5. It is small. / It is not small. 6. We are at school. / We are not at school. 7. You are very kind. / You are not very kind. 8. They are in the park. / They are not in the park. 9. Tom is my brother. / Tom is not my brother. 10. The cat is black. / The cat is not black. 11. I am from Ecuador. / I am not from Ecuador. 12. You are late. / You are not late. 13. He is in the classroom. / He is not in the classroom. 14. She is nine years old. / She is not nine years old. 15. It is cold today. / It is not cold today. 16. We are ready. / We are not ready. 17. You are good students. / You are not good students. 18. They are happy. / They are not happy. 19. Ana is my teacher. / Ana is not my teacher. 20. The dogs are big. / The dogs are not big.