You ... bring a packed lunch every day; the school canteen is open all day.

mustn't

must

don't have to

have to​

You don't have to bring a packed lunch every day; the school canteen is open all day.

Объяснение:

You don't bring a packed lunch every day; the school canteen is open all day.

Объяснение:

то есть в этом контексте мы можем перевести

don't bring как,

ты можешь не брать.