My father is a doctor.

Daichi is my best friend.

He studies hard every day.

When a baby starts weaning, you begin to give them solid food little by little.

The baby has started to wean.

Day after day, he continued to strive to solve the problem.

The marquis was proud of his position.

His coffee boiled and the splash flew around.

What is this powder?

I think his plan is putting the cart before the horse.