Write the next sentence in this paragraph:

How to know if a senior dog is right for your family
Realize that most senior dogs are trained.
Puppies are adorable creatures that are easy to love, but housebreaking a puppy can be a frustrating and tedious process. A prime benefit of bringing a senior dog into your home is that, in most instances, the housebreaking has been done for you.

Possible answers:
[+] There are no classes or levels of training. You only have to spend time with your senior dog first.
[+] Take your child to work or go for a walk with you so your aging dog is not left alone, especially when the house gets busy. Be mindful that most senior dogs will only be addressed if you leash-train them properly.
[+] However, you should still be prepared to spend at least some time training your senior dog if you decide to get one. Senior dogs are typically already potty trained.
[+] In addition, a senior dog will not be easily replaced, unless its owner does not plan to spend time with it as a young adult. Anticipate your dog's needs.
However, you should still be prepared to spend at least some time training your senior dog if you decide to get one. Senior dogs are typically already potty trained.