Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to keep a dog cool in hot weather [title] Keep a filled water bowl near your dog at all times. [step] While this may be obvious, it is an especially important step. [substeps] If your dog finishes the bowl quickly, get a bigger bowl or get a few bowls.

Ending1: If you live with others, set up a schedule to ensure that someone is remembering to check and refill the bowl throughout the day. [title] Give your dog somewhere to get wet. Ending2: If you are not sure if a full bowl will fit in your dog's mouth, do not make it so warm that he can't do anything else. You should also keep a thermometer in your dog's mouth. Ending3: [title] Carry a thermometer with you. [step] Either have one with you wherever you go or purchase one as soon as you come inside. Ending4: For hot dog bowls, take out the water bowl after watering the dog. If your dog finishes a bowl, replace it.

Answer format: ending1/ending2/ending3/ending4