Найдите ошибку: 1) students haven't to wear a uniform in our school and so you can wear what you want 2) you mustn't drink and drive - it's illegal

Students don't have to wear a uniform in our school and so you can wear what you want.

have to - модальный глагол в значении приходиться", его отрицательная форма строится с помощью вспомогательных глаголов и отрицательной частицы - в данном случае don't