Keishi studied programming.

Kaoru's room always smells good.

Kaoru is my best friend.

I try to study at least one hour every day.

I study at the library every day.

I set aside time for studying every day.

He started learning programming.

He is excited to learn a new programming language.

He is passionate about competitive programming.

Object-oriented programming is an important method for improving the efficiency of software development.