Relier Pairs IdiomsVersion en ligne Match the idiom with the correct picture. par Karla Izquierdo 1 Barking up the wrong tree 2 A chip off the old block 3 A pig with lipstick, is still a pig 4 Once in a blue moon 5 Costs an arm and a leg 6 To hear something straight from the horse's mouth 7 As mad as a hatter 8 As red as a beetroot 9 All that glitters is not gold 10 Apple of my eye