Ответ:

  1. No, she hasn’t.
  2. Yes, they have. Their cameras are old.
  3. Yes, he has, but it isn’t red.
  4. Laura and Steve haven’t got skateboards. It is white.
  5. Laura and Paul’s watches are very big.

Ответ: hasn’t; have, are; has, isn’t; haven’t, is; are.