Ответ:

  1. Is she a doctor? Yes, she is.
  2. I am not an actress. I am a vet.
  3. Are they from Mexico? Yes, they are.
  4. They aren't twenty. They are twenty-two.
  5. Mark is a farmer. He isn't a waiter.
  6. We are Spanish. We aren't Italian.
  7. I am from Portugal. I am not Spanish.
  8. Is he a pilot? No, he isn't.
  9. Are you a teacher? No, I am not.
  10. Is he from Spain? Yes, he is.

Ответ: 1 Is, is; 2 am not; 3 Are, are; 4 aren't; 5 isn't; 6 aren't; 7 am not; 8 Is, isn't; 9 Are, am not; 10 Is, is.