Studious

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

Mary is the least studious of the three.

Tom is studious.

He's very studious.

Tom is very studious.

Wise, modest, contemplative, studious, never clamorous, even if a bit stubborn, he always avoided causing distress to anyone.

Tom has been studious his entire life.

Tom isn't as studious as he used to be.

He's studious.

All my children are studious.