He is always an optimist, thinking positively no matter what happens.

I am planning to go to Inner Mongolia, an autonomous region of China, next week.

I have been to Outer Mongolia.

I have been to Chicago.

The Paleogene period was a very important time in the history of the Earth.

The city levies taxes from local businesses.

He was writing essays every day until late at night to publish his own collection of essays.

My friend lives in Illinois.

This machine has very strong suction power.

I will travel to Kyushu next week.