I am helping my son prepare PSAT/SAT/ACT, because he came U.S when he was 11-year-old, I think he missed some formal education on English grammar. In the recent days, I have done a lot of research trying to find a good grammar book, which can provide a good review, in the same time, hope it can help my son prepare for PSAT/SAT/ACT. At last, I found it. “The Only Grammar Book You’ll Ever Need: A One-Stop Source for Every Writing Assignment” is an excellent grammar book.
This book is comprehensive and well written. I have found this book indispensable; it’s especially useful when coaching students for the SAT Writing exam and the English section of the ACT. Any grammar question you can possibly have seems to be in here, and it’s very easy to reference.