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