【導讀】vegetables,fish,meat,noodles,fruit,orangejuice,hotwater,should/shouldn’t…must/mustn’t…beforemeals.Wemustn’tdrinksourmilk.Wemustn’tspitinpublic.everyday.Spiteverywhere.Thesechemicalsare. ()oftendoyoueatcandy?A.Lessthan7hours.()oftendoyouexercise?C.Everyday.A.Morethan4hours.B.2-4hours.C.Lessthan2hours.tomyfather?