Question

complete the sentence with the best relative pronoun.
our human resources manager is quite enthusiastic about emma fletcher,
made an excellent first impression during the interview.
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Explanation:

The sentence has a non - restrictive relative clause (the part after the comma) that modifies the person "Emma Fletcher". For non - restrictive relative clauses referring to people, the relative pronoun "who" is used. "Which" is used for things, "that" is not used in non - restrictive relative clauses, and "whom" is used as an object, but here the pronoun is the subject of the clause "made an excellent first impression...".

Answer:

who