How many mouth have 28 days?

How many mouth have 28 days? it have many theeth but no mouth.what is it? 选疑问词填空（过程）how long,how soon,how often,how many ( )will he be back?In a mouth ( )of them go to the movles?( )have you lived here?For a year how many ()do you have? How many .does.have?造句 英语翻译 how many apples do you have How many books do you have? HOW many apples DO YOU have? How many car do you have? How many books do you have? How many books do you have? How many classes do you have how many storybooks do you have How many money do you have?改错 books many how have you do How many books did you have? How many school things do you have? how many classes do you have a