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