Choose the most appropriate adverb to fill in the blank in the following sentence:-
He worked ______ for ten years on his research study.
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → relentlessly
An adverb is a word that tells how, when, where or how much something happens. It can also describe an adjective or another adverb, for example she sings sweetly, very hot.
Complete sentence: He worked relentlessly for ten years on his research study. "For ten years" shows long, continuous work, so "He worked relentlessly for ten years" tells us how he worked.
| Option | What it tells | Example |
|---|---|---|
| (1) relentlessly (answer) | adverb of manner: without stopping or giving up, with steady effort | The rescue teams worked relentlessly through the night. |
| (2) in excitement | in a state of eager, happy feeling. It describes a passing mood, which cannot last through ten years of research. | The children jumped in excitement when the results came. |
| (3) in the morning every day | an adverbial of time. Placed before "for ten years", it makes the sentence clumsy. The blank asks how he worked. | She goes for a walk in the morning every day. |
| (4) to and fro | moving backwards and forwards. It describes movement, not the way someone works on a study. | The worried father walked to and fro outside the operation theatre. |