He is from an illustrious family.

This problem belongs to the division of mathematics.

This sentence is hard to read because it doesn't have any punctuation marks.

He is really attracted to good looks, always surrounded by beautiful women.

She opened her mouth wide in surprise.

He shook his head in response to the question.

No, that is incorrect.

He decided to change his character.

If you rephrase that complex theory in simpler terms, it's just common sense.

This apple contains poison.