Completa le frasi riguardanti le regole per andare ad un concerto, usando MUST, MUSTN'T, HAVE TO, DON'T HAVE TO.
1 You.....arrive at the stadium early. The gates close ten minutes before the concert starts. 2 You....print your ticket. An electronic ticket is fine. 3 People.....sit in the correct seat number. 4 Fans.....go on the stage. 5 The singer.....arrive early. She's the star! 6 The security guard.....check all the tickets. The security guard has to check all the tickets.