You are driving in the middle lane on a three expressway. A car begins to pass you right. The actions of that driver wrong?

Yes, the actions of the driver passing on the right are wrong. On a three-lane expressway, the middle lane is typically used for passing. The right lane is for slower-moving traffic, and the left lane is for faster-moving traffic. By passing on the right, the driver is breaking the law and putting themselves and other drivers at risk.