Banku was … unhappy after the fight.

Analyze the question We need a word that correctly fills the gap in: "Banku was __ unhappy after the fight." The gap comes before the adjective "unhappy", so we need an adverb that can modify an adjective.

Explain the concept An intensifier (adverb of degree) modifies an adjective. Let's check each option:

• very: a standard intensifier that goes directly before an adjective (very happy, very tired). It fits.
• too: means "excessively". It usually needs a complement or context, e.g. "too unhappy to eat." On its own, "was too unhappy after the fight" feels incomplete.
• much: normally works with comparatives or past participles ("much happier", "much loved"), not with a plain adjective like "unhappy". We say "very unhappy", not "much unhappy".
• such: goes before a noun phrase ("such an unhappy boy"), not directly before an adjective alone.

Solution "Banku was very unhappy after the fight."

This is grammatically correct and complete, and it expresses a high degree of unhappiness. The other options are either incomplete (too), wrongly used (much), or wrongly positioned (such).

Answer: A. very

Exam tip: Use "very" before plain adjectives (very big, very sad). Use "too" only when it means "more than is good or needed", usually followed by "to..." or "for...". Use "much" with comparatives (much better) and "such" with nouns (such a day).