How to handle old gasoline prior to starting car

The car has not been driven in about eight or nine years. The car was running perfectly when I quit using it. I wanted to keep the car until I retired so I could tow behind an RV. I started the car on a regular basis for four or five years and then it tailed off. What do I need to do with the fuel lines and gas tank, if anything? I have not tried to start the engine.