Translation of "Studious" in French

Tom is studious.

Tom est studieux.

Mary is the least studious of the three.

Marie est la moins studieuse des trois.

- You're diligent.
- You're hardworking.
- He's diligent.
- He's studious.

Il est diligent.

No other boy in our class is more studious than Jack.

Aucun autre garçon dans notre classe n'est plus studieux que Jack.