2) they don't have to wear a uniform at work;
3) Do you have to do a lot of homework?;
4) My mother doesn't have to go to work early;
5) Mark and Sally have to be home by 9 o'clock;
6) Does Jo have to walk to school?.
2) they don't have to wear a uniform at work;
3) Do you have to do a lot of homework?;
4) My mother doesn't have to go to work early;
5) Mark and Sally have to be home by 9 o'clock;
6) Does Jo have to walk to school?.