8th Grade ELA Question of the Day

1. The committee members debated for hours to succeed in reaching a fair agreement.
2. The teachers worked overtime to study effectively the new district curriculum guidelines.
3. My mother spends her weekends to improve her skills as a talented amateur painter.
4. The students gathered in the library to study for their upcoming final examinations. (correct answer)

Explanation: An infinitive works as an adverb when it modifies the main verb by telling why or for what purpose the action happens. In the sentence about students gathering in the library, "to study" explains why they gathered—it answers "Why did they gather?"—so the infinitive modifies the verb "gathered" and functions as an adverb of purpose. In the sentence about the committee debating, "to succeed" doesn't tell why they debated; the debating itself was the effort, so this reads awkwardly and the infinitive doesn't cleanly modify the verb as purpose. In the sentence about teachers working overtime, "to study" seems adverbial, but "effectively" and the object "guidelines" show the infinitive is really acting as a verb with its own object rather than a clean adverb of purpose modifying "worked." In the sentence about the mother, "to improve her skills" follows "spends her weekends" as what she spends them on—it functions like a noun object, not as an adverb telling why she spends them. Remember: an adverbial infinitive answers "why?" about the main verb. Test each sentence by asking whether the infinitive gives the purpose of the action—only the library sentence passes that test clearly.