3make questions from these sentences with have to. 1 we have to buy our own books at school. 2 he has to work until 7.30 p.m. 3 my friends have to go home before i do. 4 my sister has to study french at her school. 5 i have to go shopping with my mum every week. 6 we have to speak english in our english classes. 7 my baby brother has to sleep every afternoon.