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