The question of Tang Jiafeng 1800 is very classic, and I personally recommend it. I did 1800 last year, but I didn't finish all the questions. Because the difficulty of the three groups of questions increased, I bought 1800 in the first round of review, and I didn't do the remaining two rare questions. In addition to 1800, there are also intensive lectures and 660 questions, which are also good counseling books. Tang's book can be seen in front of the video, and the effect is better.