Must/ have to / mustn,t / don,t have to / doesn,t have to? 1. it,s 8 o,clock! i go to work . 2. her granny is ill. she visit her. 3. i leam english. it will help me in the future. 4. it,s very cold. you go out today . 5. you clean your room today. you can do it tomorrow. 6. your dog sleep in your bed.
2. Have to
3. Must
4. Don't have to
5. Mustn't
6. Doesn't have to