_________ are the areas near the left and right rear corners of your vehicle that you cannot see in your mirrors.

Explanation

Your mirrors don't show you everything around your vehicle. There are "blind spots," areas near the left and right rear corners of your vehicle that you cannot see in your mirrors. To see these areas before you turn or change lanes, you must look over your shoulder to view them directly. No-zones are the large blind spots around a large commercial vehicle such as a bus or truck.