Choose the correct adverb to fill in the blank:
Sentence: The scientist faced many obstacles. Yet, she __ persevered, achieving a groundbreaking discovery.
Answer & explanation
Correct answer: option 3
Answer: (3) tirelessly
Explanation: This question looks for an adverb describing how she persevered.
- Happily suggests a positive but irrelevant emotion to overcoming obstacles.
- Carelessly implies a lack of effort, the opposite of perseverance.
- Tirelessly emphasizes her unwavering and persistent effort.
- Cautiously suggests carefulness, which isn't the main focus here.