On a summer night, the light of the fireflies illuminated the surface of the river.

The scallop dishes at this restaurant are exquisite.

What is the complement of this sentence?

Health and physical education class is my favorite time.

The complement system of the immune system plays an important role in eliminating foreign substances in the body.

I go jogging every day.

I am studying Japanese.

That is my personal issue.

I am studying Japanese.

My name is Tanaka.