Поставьте в пропуски must, mustn't, have to, don't have to, can or can't 1) a: do we this exercise in class? b: no, . you finish it at home if you like - but you finish it before the next lesson! 2)a: i hate waitingfor the bus in the morning! b: fortunately, i take the bus, because i go to school by bike. 3) a: you help me with the washing-up if you're busy, you know b: no, i'm happy to help- but forget to write my report for tomorrow 4) a: i'm afraid go out with you tonight - i visit my parents b: i come with you,then?
2) don't have to
3) don't have to / mustn't
4) mustn't / have to / must