Hi friends. I've got a question. Could you, please, explain something to me?<br/><br/><i>A. Whatever happened up there, I'm guessing, has something to do with what I'm about to show you.</i><br/><br/>I put commas correctly, don't I?<br/><i>Whatever happened up there</i> is a Subject, isn't it?<br/><br/>Any explanations are welcome. Thank you.