Which book to choose for a quick study of English (1 month)?

Question

Books

Hello
, I am finishing my 5th year (correspondence bachelor) in management. And, perhaps, I will enter the magistracy (they said that with my brains and on the budget it is possible to enter, otherwise I would not go).
The problem is that you have to take tests on a PC in English. Tell me, please, a book to learn grammar in a month.
My knowledge of English:
I taught it in 5th (when the teacher was in class), 6th, 8th and 9th grades. Changed 3 schools. In the last 2 schools, everyone taught him from the first grades. Accordingly, I missed a lot in terms of grammar, although I always had 4 and 5. I can now read books on design and programming in English, but I hardly write or say anything.
Thanks in advance!

Answer 1

Try Murphy's books. They are in English, but very much appreciated. Essential Grammar in Use and English Grammar in Use