I was trying to explain something to my students about articles and found myself stumped. Here is the example I used:<br/><br/>Q: What is wrong with you car?<br/><br/>A #1: The radiator is broken. (The definite article is used because both the speaker and the listener know which radiator they are referring to.)<br/><br/>A #2: It has a broken radiator. <br/><br/>Even though I know that A #2 cannot use the definite article, I cannot explain while it uses the indefinite article "A."<br/><br/>Could anyone please explain this? Thanks.