1. They mustn't watch tv tv but they can listen to the radio.
2.you have totake your passport, but you mustn't take your phone.
3. can they be here?
in our shool it's forbbidden to take photos, but you can use your phone.
5. you don't have to buy more vegetables
6.they can smoke, but it's forbidden to drink.
she doesn't have to go to shool.
i don't have to work but i can if i want
it's forbidden to leave cars here.
we cannot swim in sea.
can you help me?
she must be at home.
it cannot be a mistake.
you mustn't send letters. I can do it.