The students on a field trip visited the museum.

He was hiding the fact that he was an illegitimate child.

He went to America as an international student.

He is working at a school as a student teacher.

That high school girl studies in the library every day.

His proposal was already perfect, but her opinion was an unnecessary addition.

He took action to stir up unnecessary problems, like poking a bush and bringing out a snake.

He said, 'Man shall not live by bread alone,' teaching me that spiritual satisfaction is also important.