Thank you for your answer, Dr. Armstrong. I'm gonna try to find another book.
Anyway, I've completely forgot to write here, so I don't have any ideas what to write.
But what I wanna tell you is that... I'm already so tired today because yesterday's 1st period is tennis.
I was a member of local tennis school when I was in junior high and high school and played tennis every Monday. However, I stopped going there in the winter on my third grade in high school and I went to a cramming school for a year, so it was almost two years ago that I played tennis for the last time. I was like a beginner yesterday and I feel a pain in my legs as if I have run 10km or some more. A blank is really scary, isn't it?
And this is why I couldn't be a good writer today. I'm sorry, guys.