He has an illustrated reference book of insects.

The government is building a nationwide surveillance network.

He was deeply involved in the project.

He is deeply involved in the project.

The author's message is written on the opening page of this book.

I live in the Kanto region.

Watching his graduation ceremony, I was filled with immeasurable deep emotion.

He is struggling to understand the perfect tense in English.

She is struggling to understand the perfect tense in English.

Bureaucracy plays an important role in the operation of the government.