The bolded pronoun in the given sentence is the word "which". This pronoun is an example of an interrogative pronoun. Interrogative pronouns are pronouns that are used to introduce a question. The antecedents of interrogative pronouns are unknown because it is what is being asked in the sentence that is missing.
Answer:
<em>Did</em><em> </em><em>anyb</em><em>ody</em><em> </em><em>clean</em><em> </em><em>the</em><em> </em><em>room</em><em>.</em>
Period at the end then its correct
