What is the difference between active and passive voice?

The active voice supposes the presence of an agent subject, that is, of a subject who performs the action of the verb directly or actively. The passive voice presents a patient subject, that is, a subject on whom the action carried out, then, by an agent complement, falls passively.

Explanation:

shean is his name and he has been a shepord for   14 years

depends on your school

when i was in high school i took ap biology my senior year and it was the hardest one for me because my teacher finished the material within the first month of school and then went on to doing advanced college level it was horrible. but at a nearby school ap biology was one of the easier aps. also, it depends on what you are interested i like math a lot so ap calculus was easier for me than most but i hate history so ap us government was harder for me than most.