5. Marque a alternativa onde os numerais cardinais: 12 - 18 - 23 - 60 - 80,
corretamente em inglês:
a)( ) twelve - eighten - twenty-three - sixty - eighty.
b)( ) twelve - eighteen - twenty-three-sixty-eighty.
c)( ) twelvy - eighteen - twenty-three-sixty - eighty.
d) ( ) twelve - eighteen - twenty-three - sixteen - eighty.​