I paid my taxes for this year.

I am currently studying the third section of mathematics.

I studied three lessons today.

Today's lesson was very difficult.

I work in the sales department.

I paid my taxes for this year.

Learning about the historical tax system in this area is very interesting.

Due to this tax reform, the cumulative imposition has increased.

The government is considering cumulatively imposing a new tax on existing taxes.

I work in the HR department.