Answer:
Us
Explanation:
We and Us are both first person plural pronouns. We is the pronoun that conjugates the verb in a sentence, so it comes before the linking verb. In this case, the linking verb is the verb "to be". After the linking verb, we have the predicate of the sentence, and the pronouns become objects of the sentence. In this case, to be grammatically correct, you need to use the object pronouns. Us is the object form of We.
