Write the next sentence in the following story.

How to become a veterinarian
Gain experience in the veterinary field.
Preparing for a career as a veterinarian begins long before even graduating from high school. You will want to gain as much experience with animals and in the veterinary field as possible during high school and your undergraduate career.
This experience will expose you to what veterinarians actually do, and will give you veterinary experience to put on your resume for veterinary school. In the united states there are 30 colleges of veterinary medicine which graduate about 3 , 000 veterinarians a year.