This classic question is to test whether you are truly a quiz champion or not.

He is struggling with math problems.

He made a math problem.

This test had too many malicious questions, making it difficult to solve.

He is studying at the library every day.

He devoted his life to the study of something.

In this sea area, you can see colorful wrasses.

I think this is really a good song.

Sadayoshi is my best friend.

Atsuyoshi is my best friend.