I returned the book to the teacher.

He is studying the history of the Balkan region.

He illuminated the darkness with a handheld lantern.

He has a deep interest in the history of China and Japan.

My Chinese-Japanese character dictionary is very useful for learning Japanese.

The spectators were watching the game with bated breath.

He just stood by and didn't help at all.

He just looked on and didn't help at all.

I was overwhelmed with immeasurable deep emotion by his kindness.

We celebrated as a family because my father reached his sexagenarian.