Question

Преобразовать предложения в вопр. И отрицание.
1.Teenagers have to be polite to grown-ups.

Answer 1

Teenagers don`t have to be polite to grown-ups.
Do teenagers have to be polite to grown-ups?

Answer 2

Do teenagers have to be polite to grown-ups?
Teenagers don't have to be polite to grown-ups.