He is _____ honest man.

**The reasoning** This tests **the vowel-sound rule for articles**. We use "an" (not "a") before words that *begin with a vowel sound*. Here's the key: It's about the **sound**, not just the spelling. "Honest" starts with the letter 'h', BUT the 'h' is silent — you pronounce it as "*on-est*". Since it starts with a vowel sound (*o*), we say "an honest man." Compare: - "an hour" (silent h, starts with *ow* sound) - "a house" (pronounced h, starts with *h* sound) - "a university" (starts with *yu* sound, even though 'u' is a vowel) **Why the wrong options tempt you** **A)** You might pick "a" if you only looked at the letter 'h' and forgot it's silent. The spelling tricks you! **The)** Sounds too specific here — we're talking about *any* honest man, not one particular person. **Some)** Grammatically wrong with singular nouns ("some" goes with plurals like "some honest men"). **Quick takeaway** Listen to how the word *sounds* when spoken — if it starts with a vowel sound (a, e, i, o, u), use "an"; otherwise, use "a."