He is worrying about the future.

I exchanged dollars for yen.

Millet was one of the main grains in ancient China.

This mulberry tree was planted by my grandfather.

There is a big mulberry tree in my garden.

I bought three pieces of apples at the supermarket.

A look of joy was on his face.

Because he is a close friend, conversations with him are always conducted in an intimate manner.

A large eddy was formed in the river.

Environmental issues are important matters that concern all of us.