7 Choisis l'option qui convient dans chaque cas.
a. You mustn't/ have to be arrogant, it's not polite.
b. You mustn't have to be punctual when you go
to school.
c. Josh must / mustn't be polite all the time, that's
what his mum always says!
d. Margot has to / doesn't have to take the bus to
go to school because it's very far from home.