Английский язык для 2 класса. Задание 4.

My parent are happy
Are they happy?
They aren't happy.

His brother is four.
Is his brother four?
His brother isn't four.

Sam and Jane are cousins.
Are Sam and Jane cousins?
Sam and Jane aren't cousins.

Her uncle is strong.
Is her uncle strong?
Her uncle isn't strong.

Kate is my sister.
Is Kate my sister?
Kate isn't my sister.