He was my student, but now he has become so proficient that it can be said 'the student has surpassed his teacher.'

I went to see the beautiful scenery of the Han River.

He is working as a member of the International Criminal Police Organization.

He holds a very high position in that company.

What is the common difference of this arithmetic sequence?

He found a victim who had been strangled.

He was strangled by the criminal.

I am grateful for his kind thought.

The Later Tang was a dynasty that existed from 923 to 937.

There is a math quiz tomorrow.