Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat a dog with a cold [title] Keep your dog warm and dry. [step] Keep your dog in a warm, dry environment as soon as you notice any potential symptoms. Turn up the thermostat by 2 or 3 degrees and provide plenty of warm blankets for your dog to curl up in.

Ending1: You might consider placing an old sheet over your dog's bed to keep it warm and comfortable. [substeps] If you have a particularly cold dog, start by heating up the crate in front of the dog. Ending2: You can even use dog sweaters and socks to help your furry friend stay cozy while they fight their symptoms. [substeps] Pet stores and online retailers offer heated dog beds, which use a low heat to help keep your dog consistently warm. Ending3: [substeps] It's advisable to take your dog to the emergency veterinarian. Bring a damp towel to keep your dog warm. Ending4: Never leave your dog alone in a place where it won't be able to move around or be comfortably exposed to cold air. [substeps] Also, make sure you provide extra warm blankets and towels to keep your dog warm when it needs them.

Answer format: ending1/ending2/ending3/ending4