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