'To build castles in the air' is- A to work selflessly B to work hard C to be a dreamer D to make a fortune 'To build castles in the air' is- Correct Answer to be a dreamer Bissoy MCQ Team May 30, 2023 English Idioms & Phrases C ইউনিট কুমিল্লা বিশ্ববিদ্যালয়