Hello,
I am wanting to be a vet, and for grade 10 we choose our courses, I was wondering what courses should I take to help with this...

Your school counselor should be able to provide you with information on what would be advisable for your career plans. Chances are they will have some type of brochures or pamphlets on the topic.
Consider classes such as biology, chemistry, and higher level math. You may not want to take on too many in one year depending on your work load and abilities.

You might even want to ask around at local vet offices and see if they offer any sort of intern program, or if you could even just volunteer so that you can get a better idea of what all is involved. Plus, talking to the people who work there will give you even greater insight as to what direction you may want to go.
Good luck!

You should take some science classes like biology. If you have genetics in your school, take that too. It's very interesting.

Okay, well our counselor is really busy so.. I was hoping I could get some help before going to talk to her:)

Just take all of the college prep classes, your advance math, advanced science classes.

You will need to be prepared to college first, T

These are the courses offerd at the school imm attending..
Grade 9: science 1 0F
Grade 10: science 20F
Grade 11: Physics 30S
Chemistry 30S
Biology 30S
Topics 30S
Grade 12: Physics 40S
Chemistry 40S
Biology 40S
Int. Science 40S

And I'm registered in pre-cal 20S

Go for the sciences... biology, chemistry, physics, and math that you can take as a junior level, but do schedule an appointment with your counselor. They are there to help, especially in the junior and senior years when course selection can become even more important for future college goals. Be sure to space them accordingly so that you can do well in them as some will require more work than others.