‘Once in a blue moon’ means EASY 1 Point -0.25 Negative MCQ #2648 English Grammar & Vocabulary Federal NTS Question 'Once in a blue moon' means Options A Very often B Never C Very rarely D Once a month Reveal Answer Reset 📝 Explanation This idiom means something that happens very rarely. ← Previous MCQ📋 All MCQs📚 LearnNext MCQ → Related MCQs HARD 'Penultimate' means MEDIUM Synonym of 'zenith' is HARD The word 'alumni' is plural of