Question

He is industrious and diligent and works very hard (Rewrite improving the style)

Answer 1

Rewriting:he is industrially motivated and very conscientious with his work, in addition to with these qualities, he is also very hardworking.Industrious:

someone who is industrious, works hard i.e. hard-working person.

Industrious in the sense positive minded to develop or create something remarkable.

So, the student has multiple qualities which are rarely seen.

Answer 2

Answer:

His industrious and diligent nature makes him work very hard.