My favorite and the most interesting subject at school is Russian language. This is one of the most important and useful subjects. We speak and write with its help. If we will check person's essay , we can understand if he knows a gramma of his language. Even if we live in Ukraine most people in our country speak Russian language, that's why it's so important to learn it.
Some people mix Russian and Ukrainian languages. I think it's wrong. Everyone should speak one language,the most comfortable for him