I'm aware that in sentences using neither-nor constructions, the verb must agree with the subject closest to it. E.g.:
Neither the dog nor the cats have been fed.
Neither the cats nor the dog has been fed.
However, when it comes to question forms, what should the verb agree with? Does the rule still apply?
Has/have neither the dog nor cats been fed yet?
To make it grammatically sound, should has or have be used in that sentence?
Edit: The question should be "Has/have neither the dog nor THE cats been fed yet?", with the definite article "the" before "cats", which preserves the structure of the example I provided.