To be able to speak the language articulately and to be able to use grammer properly. You don't want to appear ignorant, do you?
English classes in Middle School and especially High School are the biggest waste of time. Taxes shouldn't pay English teachers money to read books to us. Nations are far ahead of the United States when learning foreign languages because of this! English should certainly be removed from the curriculum because students start learning English grammar as early as elementary school!
English
English, math and science.
It is best to take Math all four years of high school as well as Science, history, English, and P.E. The classes you take also depend on what you want to go to college for.
Take any classes that revolve around or touch upon your interests. Also, look into an English course; "When your in high school" should be "When you're in high school" and "your not sure" should be "you're not sure."
English, math and science.
You can take the ACT regardless of which classes you take. You can even take it before entering high school.
Classes that veterinarians take in high school would be biology (other sciences) and math
Yes, you can take two English classes at at a time if the school permits it.
Generally, yes. Most high school english teachers hold degrees in English, which often requires creative writing classes to obtain.
Dance Classes
To get college credit in high school.
It doesn't really matter what classes you take in high school or even in college. The grades you get are more important.