Relative Clauses

Who, which, that, whose, where — connecting clauses to add information.

Pronoun	Used for
who	people (subject)
whom	people (object)
which	things
that	people or things (restrictive)
whose	possession
where	places

Employees *who* complete the training will receive a certificate.

The building *where* the conference is held is downtown.

The report, *which* was submitted yesterday, needs revision.

Restrictive (no commas): essential info → The person *who* called is my manager.

Non-restrictive (commas): extra info → Mr. Lee, *who* is our CEO, will attend.

Examples

The candidate whose resume stood out was offered the position. — 이력서가 돋보인 후보자가 그 직책을 제안받았다.

TOEFL Tip:

After a person noun, use "who". After a thing noun, use "which" or "that".