Mr Harmer is telling his son what he must or mustn't do. Fill in the gaps with must or mustn't. You ..mustn't forget to do your homework. 1 You .. .. drink your milk . 2 You .. come home late. 3 You .. .. be so noisy! 4 You... remember to feed the 5 You... leave your room untidy 6 You. wash your hands before you eat dinner. 7 You .. .... fight with your sister. 8 You .. help your mother. 9 You .. visit your grandparents. 3 rabbit.
