He has reached the pinnacle in that field.

He is a citizen of three countries, holding citizenship in America, Canada, and Japan.

I am a proud Earthling.

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.

My keys are inside the house.

He was entirely engrossed in his work.

He is experiencing the stage of bardo, according to the teachings of Tibetan Buddhism.

I was born and raised in Fuchū city.