Переделайте эти утвердительные предложения в отрицательные и вопросительные 1) he is happy 2)his computer is old 3) vera is his wife 4)they are his sons 5) its cold today

He is not happy
Is he happy?
His computer is not old
Is his computer old?
Vera is not his wife
Is Vera his wife?
They are not his sons
Are they his sons?
It is not cold today
Is it cold today?