Relacionar Columnas LanguageVersión en línea Idioms por Fernando T. 1 Cost an arm and a leg 2 A piece of cake 3 Butterflies in my stomach 4 Hit the sack 5 It’s raining cats and dogs 6 My blood is boiling 7 A couch potato 8 In hot water 9 I am under the weather Very expensive Nervous and anxious Something that you say when it is raining heavily Very easy! I am sick! I am very angry! A person who doesn’t have an active life To be in difficulties Go to sleep!