[Problem section]

PART 1 Random OX
PART 2 Random Practice Problems

[Answers and explanations]

PART 1 Random OX
PART 2 Random Practice Problems

The features of 『2026 Jo Tae-jeong English Practical Grammar 525』 are as follows.

1.
Random OX 425

By randomly encountering various grammar points, you can practice quickly grasping grammar points no matter what sentence you encounter in real life.

2.
100 random practice problems

We've randomly arranged frequently appearing grammar points to help you develop a sense of preparation for the actual exam.
From the 2025 exam onwards, we've applied everything from the types of blank spaces to the latest exam trends to practice solving grammar problems that fit the exam trends.

3.
A friendly and detailed book-within-a-book commentary

We have provided explanations for correct and incorrect answers for each section, so you can easily understand grammar points on your own.
Interpretations and vocabulary are provided together to enable reading comprehension and vocabulary practice, and #Re-grammar grammar points are provided to facilitate supplementary study.