Compléter Modal VerbsVersion en ligne Gap Fill par Logos Sprachinstitut 1 mustn't to must don't to have have don't must 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 .