"[SC is the key to victory] This sentence is probably heard countless times by everyone who takes the GMAT test. No matter what material you choose, every time you review grammar over and over again, you will have a different perception, so in my opinion, you don’t have to worry too much about reading all the materials, and you don’t have to worry about whether the material you choose is so-called Best of all, the key is to use the resources at hand efficiently. Then I will share the materials I use.
1. I brushed OG's SC again, and the accuracy rate is average. After researching the wrong question, I feel that OG's explanation is sometimes really tricky.
2. I brushed Manhattan SC. Maybe because I was an English major, reading this book was not difficult at all. However, when I read it for the first time, I only had a general understanding of the knowledge points, and I did not have a deep understanding.