During wartime, he was working as a doctor.

He worked hard to accomplish his goals.

His role is the team leader.

Health is very important.

His opinion is very important.

My keys are inside the house.

He is quite a good cook.

I think his Japanese has improved quite a bit, hasn't it?

I am busy with work during the daytime.

He received the letter challenging him to a duel and began preparing for the duel.