Intersections · Right of Way
A vehicle approaching an intersection must yield to traffic already in the intersection.

A vehicle approaching an intersection must yield to traffic already in the intersection.
Example: You move toward an intersection. The traffic light is green and you want to drive straight. Another vehicle is already in the intersection making a left turn. Let that vehicle complete its turn before you enter the intersection.
Learn it with your state's rules
DMV One Way teaches the whole handbook slide by slide and checks it with practice questions.