Скажите что не так. I am ready. I am eight.We are late. Ann is cold.That is right. It is warm today.The boys are late.They

 I am not ready. I am not eight. We are not late. Ann is not cold. That is not right. It is not warm today. The boys are not late. The boys are not late. They are not at school. You are not a teacher. Sam is not busy today.

Чтобы образовать возражения, в данном случае нужно после формы глагола to be во времени Present Simple Tense (is, are, am) поставить отрицательную частицу not.