Choose the correct item. 1 You mustn't/have to exercise if you are ill. 2 Mike must/has to eat more fruit - his doctor told him to. 3 You don't have to/mustn't make dinner - I'll cook some pasta tonight. 4 Athletes mustn't have to follow a strict diet. 5 I mustn't/must see a dentist about my toothache. 6 Laura doesn't have to/has to take part in sports day if she doesn't want to.