Решение:
- He's got twelve years old.
- I'm got a very big family.
- I'm got tall and I've got blue eyes.
- My mother's got short hair.
- Her eyes have got brown.
- My brothers have got tall and they're got fair hair.
- Rachel's got tall and slim.
- Jack's got quite short hair and he's got brown eyes.
Ответ: Выбраны правильные формы глаголов "have got" и "be".