In this unit:

• • A: Are you an architect?
    singular, femenine
  • B: Yes, I am.
• • A: Is this your car?
    singular, informal
  • B: Yes, it is.
• • A: Is this book good?
  • B: Yes, it is.
• • A: Is he an actor?
  • B: No, he isn't.
• • A: Is she a secretary?
  • B: No, she isn't.
• • A: Is this an interesting website?
  • B: No, it isn't.
• • A: Are you doctors?
    masculine
  • B: No, we aren't.
• • A: Are these fims good?
    movies
  • B: Yes, they are.
• • A: Are those apples good?
  • B: No, they aren't.
• • A: Are they Puerto Rican?
    masculine
  • B: No, they're Salvadorean.
• • A: Is Pedro a good doctor?
  • B: No, he isn't.