Multiple choice The place ___ we used to study is no longer a school. whom at where Reveal answer Fill a bubble to check yourself C Correct answer Explanation Relative clauses describing places are introduced by the relative adverb 'where'. 'Whom' is used for people, not places. 'At' alone doesn't work as a relative pronoun here. 'Where' serves as both the relative marker and refers back to 'the place'.