She is fond ___ books.

**The reasoning** In English, certain adjectives pair with specific prepositions — we call these **fixed expressions** or **collocations**. "Fond" always takes the preposition **"of"** when you want to say someone likes or loves something. The structure is: **fond + of + noun/gerund** Examples: - She is fond of books. - I am fond of reading. - They are fond of music. This is not about logic — it's about what native speakers have used for centuries. You must memorize which preposition goes with which adjective. **Why the wrong options tempt you** - **"from"** makes you think about origin or source (e.g., "She comes from Lagos"), but "fond from" doesn't exist. - **"to"** feels natural because we use it often (e.g., "listen to music"), but "fond to" is grammatically wrong. - **"by"** suggests agency or means (e.g., "written by him"), completely unrelated to expressing affection. **Quick takeaway** Remember: **"Fond OF"** — just like you're "tired OF," "afraid OF," or "proud OF." The preposition "of" often follows adjectives describing feelings or states.