Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to train for airsoft [title] Practice aiming. [step] Set up a stable target and stand ten feet away. Each time you hit it, move five feet back, and each time you miss, move five feet forward.

Ending1: Once you start going from one place to another again and again, you have found your comfortable shooting range. After finding your range, draw a mark where you can hit it and one where you can't. Ending2: Practice until you feel like you will perfect the hitting motion. Once you get the hang of it, you will be able to manage obstacles with ease. Ending3: Finish the drill with ten steps so you can whip your wrist back and forth for another minute or two. Make sure you come up close enough to hit the target. Ending4: You can choose to practice with your right side or your left side. The goal should be to make contact with your target when you usually miss.

Answer format: ending1/ending2/ending3/ending4