Matching Pairs Schema Online version Look at the idioms and match them with the correct definition. by Doribeth Jarquín Calvo 1 Speaking of the devil 2 Once in a blue moon 3 To cost an arm and a leg 4 A piece of cake 5 Burn the midnight oil 6 It´s raining cats and dogs 7 To see eye to eye 8 The cat is out of the bag 9 Cat got your tongue ? to accidentally reveal a secret something is very easy very rarely the person you´re just talking about arrives something is very expensive agreeing with someone It´s raining heavily to work until late at night someone is quiet and isn´t talking