Relacionar Columnas COMMON IDIOMS IN ENGLISHVersión en línea A short list of common idioms in English. por kepa olaizola garcia 1 Costs an arm and a leg. 2 Hit the books. 3 Break a leg. 4 Hit the nail on the head. 5 Sleep on it. 6 You can´t judge a book by its cover. 7 Piece of cake. 8 Take it easy. 9 Let the cat out of the bag. 10 When pigs fly. Relax Something that is precisely right. Something will never happen. To disclose a secret that was supposed to be kept. Something is very expensive. To think. To study. You shouldn´t decide upon something based just on outward appearances. Good luck. Something is very easy.