"I have drunk beer since I was sixteen."

Translation: Jeg har drukket øl siden jeg var seksten.

[22decembre]

... siden jeg blev seksten ?

[btwillbethere]

That would mean 'since I became sixteen'.

[22decembre]

which is exactly what I am thinking !

[Tiogar60]

No. Im from denmark and i now that the test/exercise is right

[Ravenaw]

it doesn't accept 16

[DieLegende2]

Of course it doesn't, you're supposed to know the Danish words for numbers