Q. We are having . . . . . . . . one-day tour in this week.
✅ Correct Answer: (A)
a
Explanation: Even though the word 'one' begins with the vowel 'o', it's pronounced as 'won' and thus has the sound of consonant 'w'. Thus, we use 'a' instead of 'an'.
Explanation by: Mr. Dubey
Even though the word 'one' begins with the vowel 'o', it's pronounced as 'won' and thus has the sound of consonant 'w'. Thus, we use 'a' instead of 'an'.