Completar frases Modals of Obligation (D)Versión en línea Use the correct modal verb to complete sentence. (Usa el verbo modal adecuado para completar las frases) por Campus Online 1 do must must have not do not have must must have must 1 . You to put on your seat bealt when driving . It's a rule . 2 . We have a lot of work tomorrow . You not be late . 3 . The museum is free . You to pay to get in . 4 . You really stop driving so fast or you'll have an accident ! 5 . You not speak too loud , the baby is sleeping . 6 . You to do that Jane , I'll do it later , don't worry . 7 . You wear a helmet " , said the pólice officer . 8 . You not smoke inside the school .