He returned from a long journey and was exhausted and wandering aimlessly.

The mesosphere is a part of the Earth's atmosphere, located between the stratosphere and the thermosphere.

He likes to write novels.

He was involved in anti-Japanese activities.

If you grow vegetables in this good quality soil, you can get very delicious vegetables.

The Democratic People's Republic of Korea is located in Asia.

He feels like a loner at school.

He is studying the history of the Taiping rebels.

I have installed a new computer.

This device is using new technology.