YOu.............smoke on buses in most countries, including ARGENTINA
MUSTN'T
YOU...............USE YOUR MOBILE IN CLASS!
MUSTN'T
YOU...............SPEAK ENGLISH IN DARIO'S CLASS.
MUST
YOU..................AT YOUR PARENTS. IT IS RUDE.
SHOULDN'T .
YOU..............BE PUNCTUAL FOR YOUR CLASS. IT IS OBLIGATORY.
MUST
YOU..............BE POLITE WITH ELDERLY PEOPLE.
SHOULD
YOU...............LEAVE THINGS FOR THE LAST MINUTE. I THINK IT IS NOT A GOOD IDEA
SHOULDN'T
YOU.................EAT SO MANY HAMBURGUERS. THEY ARE BAD FOR YOUR HEALTH.
SHOULDN'T
IF YOU FEEL TIRED, YOU ..............GO TO BED.
SHOULD
YOU .....................WEAR A SEAT BELT IF YOU GO BY CAR.
MUST