Is it possible to use "it is, then" with plural nouns?
Example:
"Apples or pears?"
"Apples."
"Apples it is, then."
Is it possible to use "it is, then" with plural nouns?
Example:
"Apples or pears?"
"Apples."
"Apples it is, then."
Context: Spoken language used in response to being told some other choice is not available or not germane to a situation.
Person 1: "I would really like to buy pears for pie as well."
Person 2 "Well, sir, we have no more pears and won't for another ten days."
Person 1: "Apples, it is then".
This is for speech. "it" here is a dummy pronoun.
A dummy pronoun is a deictic pronoun that fulfills a syntactical requirement without providing a contextually explicit meaning of its referent.
Is it possible to use "... it is, then" with plural nouns?
The example you give is somewhat idiomatic English. The "it" pronoun refers not to the apples, but to the chosen option.
"[Is your choice] apples or pears?" (implicitly asking to choose exactly one of the options)
"[I choose] Apples [from the options presented]."
"Apples it is, then."
So the referent of "it" is "your single option, from what was options were available". Hence, regardless of whether it's one apple or many apples, the option chosen is a singular noun; and so, "it" is appropriate.
In the dialogue, the plurality of "apples" and "pears" never matters, because the pronoun doesn't refer to them.