He examined the spare parts one after another.

He failed in the examination because he had not studied.

He could not take examination on account of his illness.

He is working hard in order to pass the entrance examination.

He entered the university after failing the examination twice.

He did serious effort, in order to pass an examination.

He is making every possible effort to pass the examination.

He works hard that he may pass the examination.

He picked up a mirror and examined his tongue.

He ought to pass the examination, for he is very capable.