Completar frases Age expressionsVersión en línea Fill the gaps with the appropriate word in order to complete the idiom por Cova de Pedro 1 feel old age hills young dog shoulders her My father always says you are as old as you . I've heard that joke before ; it's as old as the . She is so sensible . She has got an old head on . My father keeps on making the same mistakes , I certainly think you can't teach an new tricks . You wouldn't think my mother is over 60 , would you ? She's very young for .