Fill in the blanks using “AM, IS, ARE, AM NOT, ISN’T, AREN’T” :1?

Fill in the blanks using “AM, IS, ARE, AM NOT, ISN’T, AREN’T” : 1. It ……………. An onion. ( + ) 2. Jasmine ………. A student. ( - ) 3. We ………. Friends. ( + ) 4. I ………. Hungry. ( - ) 5. Mark . 20 years old. ( + ) 6. A bee ………. A big insect. ( - ) 7. Newsweek ………… a magazine. ( + ) 8. I …………. A professional football player. ( - ) 9. I know you. You ……. In my class. ( + ) 10. Cows ……… insects. They ……. Mammals. ( - / + ) 11. İzmir …………. A city. ( + ) 12. He ……… a postman. ( + ) 13. It ………. Nine o’clock. ( + ) 14. Manhattan …………. An island. ( - ) 15. Mr. Richards …… a lawyer. ( + ) 16. I ………. Ill. I …………. Happy. ( + / - ) 17. London ………. A big city. ( + ) 18. Dave and Adrian ………… sisters. They ……. Brothers. ( - / + ) 19. New York ………. Near to New Jersey. ( + ) 20. Susan and I ………. Teachers. We ………. Students. ( - / + ).