I must help my mother about the house. I must go shopping. I mustn’t get up too late. I must look after my pet. I mustn’t eat too much ice cream. I must come to school on time. I mustn’t be late for school. I must take my dog for a walk. I must feed my pet. I mustn’t watch TV too late. I must do exercises every day. I must wash my hands before I eat. I mustn’t go to bed too late.