Question

in most cases, a pronoun must agree with its antecedent in gender, person, and ---------.

Explanation:

In English grammar, pronoun - antecedent agreement requires that a pronoun agrees with its antecedent in gender, person, and number. For example, if the antecedent is singular (e.g., "the boy"), the pronoun should be singular (e.g., "he"), and if the antecedent is plural (e.g., "the boys"), the pronoun should be plural (e.g., "they").

Answer:

number