Choose the correct answer. 1 You mustn't don't have to touch the cakes because they're for this evening. 2 You mustn't/don't have to buy any cheese There's lots of it in the fridge. 3 We mustn't/ don't have to forget his birthday 4 You mustn't/don't have to use your 3G. There's wi-fi in the school 5 You mustn't don't have to do the washing up I can do it this evening. 6 You mustn't/don't have to talk during the lessons. The teacher gets really angry if you do