Please choose the correct ending to complete the given sentence: Sports and Fitness: [header] How to win at badminton [title] Improve your speed. [step] Getting around the court quickly is extremely important in badminton. If you really want to improve your game, you'll need to train between games.

Ending1: For starters, you'll probably want to do small errands, like picking up a new ball, at the end of the game. Small errands are key to improving your gh. Ending2: Work on being able to hit 10 , 000 goals without much trouble at all. The judge may even give you a free pass for some reason! The first step towards improving your backswing is to improve your technique so that you can hit goals close to the court. Ending3: Try jogging and walking weekly; it will keep you quick and your knees strong. [substeps] You can play shadow badminton with a partner to improve your speed and footwork. Ending4: To make sure you can make it, always do 10 mph (14 km/h) per 15 mins (30 km/h). Try to practice at least 20 times a week.

Answer format: ending1/ending2/ending3/ending4