Respuestas
Respuesta:
1. Is
2. Isn't
3. Are
4. Am not
5. Is
6. Isn't
7. Is
8. Am not
9. Are
10. Aren't - are
11. Is
13. Is
14. Isn't
15. Is
16. Am - am not
17. Is
18. Aren't - are
19. Is
10. Aren't - are
Explicación:
Asi se usa el verb to be
I - am
You - are
He, she, it - is
We, you, they - are
Respuesta:
1. It's / It is (son lo mismo) an onion.
2. Jasmine isn't / is not a student.
3. We're / we are (son lo mismo, todo con / son lo mismo) friends.
4. I'm not / I am not hungry.
5. Mark is 20 years old.
6. A bee isn't / is not a big insect.
7. Newsweek is a magazine.
8. I'm not / i am not a professional football player.
9. I know you. You're / are in my class.
10 Cows are'nt insects. They are mammals.
11. Izmir is a city.
12. He's / is a postman.
13. It's / it is nine o'clock
14. Manhattan isn't /is not a island.
15. Mr. Richards is a lawyer.
16. I'm / i am ill. I'm not happy.
17. London is a big city.
18. Dave and Andrian aren't sisters. They are brothers.
19. New York is near to New Jersey.
20. Susan and I aren't teachers. We're students.
Explicación: Tan solo es el uso de Is y Are dependiendo del sujeto y de si es positivo o negativo. Espero que te haya servido.