Please choose the correct ending to complete the given sentence: Health: [header] How to remove bad breath [title] Brush your teeth for 2 minutes twice a day. [step] This is the number one thing you can do to fight bad breath. Using a toothbrush and fluoride toothpaste, brush in the morning and evening every day.

Ending1: Brush it after eating meals and before bed so that your breath stays fresh. [title] Take your child's temperature every other day. Ending2: Your mouth is no different when brushing teeth for the sake of helping your breath pass. [title] Avoid using mouthwashes on the nose or mouth. Ending3: Set a timer for two minutes or listen to a short song to keep time, since most people do not brush for long enough. If you are really worried about bad breath, brush after every meal. Ending4: Brushing your teeth with fluoride in them could also help dislodge dry or stinky breath. If you're a fan of brushing the teeth in the morning and evening, you can brush an electric toothbrush.

Answer format: ending1/ending2/ending3/ending4