Completa le frasi utilizzando MUST oppure MUSTN'T ma scegli quale usare in base al senso di ogni frase(01).
It's late. You...make so much noise. / We...be home by 9 o'clock. The film starts at 9:15. / I...finish this essay today. It has to be handed in by tomorrow. / Passengers...talk to the driver while the bus is in motion. / This is a dangerous tour. Children...be accompanied by an adult. / People...stand on this bus. / We...do more exercise to stay fit. / There...be sth wrong with the engine of this car. / We...give up when we are so close. / This was a nice evening. We...meet again.