A query concerning a possible predicate adjective.
The Q is: Galba unus cum studio laborat
The answer given in the key is :
Galba works alone with zeal.
Is unus a predicate adjective in this instance and thus remains nominative in agreement with Galba even though it comes after the verb?
If a Q states: One is a dog, the OTHER is a cat
and another Q states One is a dog, ...