Emojis : guess the idiomsOnline version review by carolina peiró 1 It's raining cats and dogs 2 It's a piece of cake 3 Money does not grow on trees 4 Don't count your chickens before they hatch 5 Don't play games with fire 6 Let's call it a day 7 Apple of your eye 8 Once in a blue moon 9 Killing two birds with one stone 10 Speak of the devil