Quote Originally Posted by Helenej View Post
Yes, I do. So, you mean there are no any style difference between them like "that" is kind of more colloquial or low colloquial than "so"?
You're correct, there are no style differences between the two. But remember they each have a specific use according to grammar. One just has to remember what those uses are. You know, to me, those the subtle differences that can be learned from a native speaker. Those are the kinds of things I hope to learn from you about Russian, and hopefully what I can tell you about English.