Answer:
Pauline met him for lunch.
Explanation:
<u>The object pronouns are: me, you, him, her, it, us, you, and them. They are called object pronouns precisely because they function as objects of verbs or prepositions in a sentence.</u> Unlike subject pronouns, object pronouns cannot perform an action.
In the case of the sentence "Pauline met her nephew for lunch," the noun phrase we need to replace is "her nephew". The noun "nephew" is singular and refers to a boy or a man. Therefore, we should use the object pronoun "him", which is third person singular, masculine. The correct sentence would be: Pauline met him for lunch.
