It depends on its condition. It is best to seek the advice of a vet.
take it to the vet ASAP.
a dogsitter or you an take your dog to the kennel.
Take the dog to a vet and they will tell you what to do.
then give it to some one who could take care of it
Any that he thinks he can take care of. If you want it to be a surprise get a dog that is easy to take care of and one that is not to wild.
try and rehome it or take it the dog shelter
Vetrinarians take care of animals and help them live when they are in danger of dying.
bring him to the nearest vet that could take care of him
take care of it so it will gan back its stranth
Keep watering it and take good care of it.
you can't actually take care of a dog if your not physically there, but you can have someone else take care of the dog; or you can accommodate the dog in an area when you are at work or school. Leaving fresh water, food, toys, bed, and a training pad helps if you aren't around.
By what?