It's a mystery where he works. The underlined clause is a/an: A noun clause B adjective clause C adverbial clause D Principal clause It's a mystery where he works. The underlined clause is a/an: Correct Answer adjective clause Bissoy MCQ Team Jun 06, 2023 English The Clauses রাজশাহী বিশ্ববিদ্যালয় A ইউনিট : 2019-2020 (group-2)