He was intently reading the book.

He was reading the new book intently.

He is researching on the pathogenesis and treatment of early-onset diabetes.

This area is rich in bedded cupriferous iron sulphide deposits.

This mineral is called anhydrite.

Maintaining oral hygiene is very important for overall health.

He is working at the pithead.

We steered the ship towards the harbor entrance.

He practices every day to improve his sailing skills.

We plan to sail on a yacht during the summer vacation.