Completa le frasi utilizzando MUST oppure MUSTN'T ma scegli quale usare in base al senso di ogni frase(02).
I...take the umbrella. It won't rain. / I...cross this bridge. It's closed. / We...be late. The train will leave in 10 minutes. / You...hurry. We have plenty of time. / You...smoke in here. It's forbidden. Look at that sign. / We have enough diesel, so we...stop here. / You...come if you don't want to. / They...do the washing up, they have a dishwasher. / You...show this e-mail to anyone else. I'll trust you. / The students...forget their homework.