When I catch a cold, this medicine works best.

I am taking medicine for a cold.

I take medicine every day.

He is using that coat from winter to spring.

You need to use your head to solve this problem.

He is majoring in mineralogy at university.

Mineral oil is often used in the manufacture of cosmetics and pharmaceuticals.

This box contains contraband.

He is working diligently on that job.

He is a diligent student, always the first to arrive in class.