You need to use your head to solve this problem.

He is using that coat from winter to spring.

I bought a new portable stove for camping.

He apologized to her earnestly.

He is good at controlling that game.

He is completely controlling the robot.

His reasoning was very clear, making it easy to explain.

On the night of the festival, colorful booths were lined up.

He proposed a new theory about the problem.

She has fair skin.