Completar Frases Modal VerbsVersión en línea Gap Fill por Logos Sprachinstitut 1 to must don't mustn't have don't must to have 1 . In Sweden , you wear formal clothing to business meetings . 2 . In India , you handle business cards with respect . 3 . In the USA , you interrupt during a meeting . 4 . In Brazil , you be prepared for long meals . 5 . In Australia , you chit - chat a lot before business meetings .