unseen
[ˌʌnˈsi:n]adjective
[not observed] inosservato ( f inosservata)
[not visible] invisibile
unseen
[ˌʌnˈsi:n]adverb
senza essere visto ( f vista)
Complétez la séquence avec la proposition qui convient.
Do you want to put … butter on these two toasts?