Our company is a subsidiary of a major corporation.

He works at a major public company.

She is learning the grammar of the present progressive form.

Among my family, I am the tallest.

Linear programming is a part of operations research and is used to find the optimal solution.

Paying the urban planning tax is a citizen's duty.

The United Nations Environment Programme is providing solutions to global environmental problems.

Toyota Motor Corporation is one of the world's largest automobile manufacturers.

I am interested in the culture of China.

He is good at reading Chinese text.