Hello Heesob
I saw some of the question asked by you. I think you're serious for learning Persian. On the other hand based on the level you have determined on your profile, I also guess you are a beginner for learning Persian . But let me give you a suggestion. Change the book or every source which you are using because the sentences written in your questions are very difficult for a beginner. Moreover some of them are not common for talking in daily life. maybe if you can find a story books written for children or manuscript of news report can be useful for you.
Good luck