Ответ:

  1. Are they in Year 7? Yes, they are.
  2. Are they in Year 6 or Year 7? They are in Year 7.
  3. Are you 10 or 11 years old? I am 10 years old.
  4. Is it a ruler? Yes, it is.
  5. Are you and Mary in the same class? No, we aren’t.
  6. Is he Mark? No, he isn’t.