1)must: be healthy,wash hands,clean the house,go in for sport,eat fruit and vegetables,do morning exercises,sleep eight hours,visit the doctor regularly,clean the teeth,feel fine,have a medical check,smile.
mustn't: smoke,eat to much, drink the alcohol, eat the snow, eat too many sweets,go to bed late,feel sick,have headache,have a bad cold,drink very cold water, eat at night,eat fast food, play computer games,be nervous.
2) 1.nine;2.one hour;3.walk;4.milk;5.sports