Online+grammar+workshops+9-Who+vs+which

=Who vs. That vs. Which=

Rule 1
//Who// refers to people. //That// and //which// refer to groups or things.
 * Examples:**

//Anya is the one **who** rescued the bird.//

//Lokua is on the team **that** won first place.//

//She belongs to an organization **that** specializes in saving endangered species.//

Rule 2
//That// introduces essential clauses while //which// introduces nonessential clauses.
 * Examples:**

//I do not trust products **that** claim "all natural ingredients" because this phrase can mean almost anything.//

We would not know which products were being discussed without the //that// clause.

//The product claiming "all natural ingredients," **which** appeared in the Sunday newspaper, is on sale.//

The product is already identified. Therefore, //which// begins a nonessential clause.
 * NOTE:** Essential clauses do not have commas surrounding them while nonessential clauses are surrounded by commas.

Rule 3
If //this//, //that//, //these//, or //those// has already introduced an essential clause, you may use //which// to introduce the next clause, whether it is essential or nonessential.
 * Examples:**

//**That** is a decision **which** you must live with for the rest of your life.//

//**Those** ideas, **which** we've discussed thoroughly enough, do not need to be addressed again.//
 * NOTE:** Often, you can streamline your sentence by leaving out //which//.
 * Example:**

//**That** is a decision **which** you must live with for the rest of your life.// //**That** is a decision you must live with for the rest of your life.//
 * Better:**

media type="youtube" key="albpopNvK8E" width="560" height="315"

//**Online tasks:**//
//**[|Task 1]**// //**[|Task 2]**//