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