Rewrite the given sentence using an adverb to provide an additional detail or hint.
He worked on the project.
He diligently worked on the project.
Complete the following task based on the instruction and optional input provided.### Instruction:
Rewrite the given sentence using an adverb to provide an additional detail or hint.

### Input:
He worked on the project.

### Output:
He diligently worked on the project.