Choose the option that best completes: He was angry _____ his brother.

**The reasoning** In English, certain adjectives pair with specific prepositions — we call these "adjective-preposition collocations." When you're **angry**, you're angry **with** someone (the person) or **about/at** something (the situation). "He was angry **with** his brother" is correct because we're directing the emotion toward a person. Think of "with" as showing who shares this emotional space with you. **Why the wrong options tempt you** - **"of"** sounds like it could work because we say "afraid of" or "proud of" — but anger doesn't follow this pattern. - **"to"** might seem logical because we say "kind to" or "rude to," but "angry" doesn't take "to." - **"from"** could trick you if you're thinking of distance or source ("He received anger from..."), but that's not how we express this emotion. Each adjective has its own preferred preposition — there's no universal rule, so you must learn the pairings. **Quick takeaway** Remember: You're angry **WITH** people and angry **ABOUT/AT** situations — never "of," "to," or "from."