put these nouns under the right category : countable or uncountable . Write the countables nouns in the plural .
  mystery , knock , bread , hoof , murmur , information , mosquito , wether , carrot , candle , milk , toast, housework ,  mother tongue , practice , idiom , tomato , vocabulary , play , advice , money , butter , coin , hair , paper , potato 
       Countables : ...........   Uncountables : ............
помогите !