I think it's still far from enough, because we made many original questions on the day of the exam, and Yale didn't have any. Tianyi should have started classes since last winter. I applied late at that time and didn't start classes until March. I missed my previous class. The registration was reported in the bookstore designated by Tianyi. No matter Tianyi or Yale, there is always a class. There are also classes in Tianyi and March, which are intensive classes, and both of them have punching classes. Finally, each of them has a three-day lecture. I suggest you report it every day. It's absolutely no problem to get gossip into the exam.