The Sentence ends that has a string of "wh-" noun clauses. These clauses will not be thoughts, so the final a person also needs to not be an issue. "Which a single is the best" is obviously a question structure, so it makes sense that " CowperKettleCowperKettle 36.7k1818 gold badges138138 https://www.diigo.com/user/cureayuherbal