Question

complete the sentence with the best relative pronoun. did the girl you met at summer camp ever write you?

Explanation:

The sentence "Did the girl ____ you met at summer camp ever write you?" is a relative clause construction. The relative pronoun "whom" (or "who" in informal usage, but "whom" is more formal and correct here as it's the object of "met") or "that" can be used. However, in this case, "whom" (or "that" or "who" in casual) fits. But the most appropriate relative pronoun for the object of the verb "met" (referring to the girl, a person) is "whom" (or "that" which is also acceptable in defining relative clauses for people). Alternatively, "that" or "who" (informal) can work, but "whom" is grammatically precise as the object.

Answer:

whom (or that, who)