CORRECTION/S:
1. My father works at Samsung and he gets his monthly salary on Thursdays. (Capitalize the word "Samsung" for it is a name of a company and it's a proper noun. Also, be consistent with your verb tenses like the words "works" and "gets.")
2. My mother is really good at everything. In fact, she got a scholarship when she was still a student. ( I wrote "is" because of course, you're mother is forever GOOD. So there is no past tense on that. hehehe :)
3. I optioned "Naga" (Garion). It means "Snake God." It is almost like a snake with three heads.
4. It was 8 degrees cold in Korea a fews days ago. (I wrote "a few days ago" to emphasize that it's past tense.)
Thank you, Amy! Keep up the good work.