1. Past tense of the verb be
01 Past tense of the verb be Ⅰ
02 Past tense of the verb be II

2 Past tense of regular verbs
01 Past tense of regular verbs
02 Negative and interrogative sentences of past tense of regular verbs

3 Past progressive tense and impersonal subject It
01 Past progressive tense
02 Impersonal Subject It

4 Auxiliary Verbs I
01 can, may
02 Negative and interrogative sentences of can, be able to, and may

5 Auxiliary Verbs II
01 must, have to, had better
02 Negative sentences of must, have to, and had better

6 Interrogative Pronouns Ⅰ
01 Who, What, Which
02 Who, Whose, What, Which

7 Interrogative Words II
01 When, Where, Why
02 How

8 Conjunctions
01 and, or, but
02 before, after, so because

Features of this book

1. Customized grammar learning through step-by-step learning
- Each chapter consists of two units, each with detailed explanations, Warm-up, First Step, Second Step, Third Step, Writing Step and Exercise, Review Test, Achievement Test, and finally, a mock test.

2 Systematic study for descriptive problems
- In particular, the Writing Step prepares you for descriptive questions.

3 Problem-solving learning that requires critical thinking skills, not just rote memorization
- Rather than simple pattern drill problems, previous problems are mixed together to help improve thinking skills.

4. Improve problem-solving skills through repetitive learning.
- Repeated learning is possible with detailed steps.

5 Systematic learning through customized vocabulary and sentences
- You can acquire the vocabulary and sentences you have learned unconsciously by repeatedly presenting them.

6 Grammar study to prepare for middle school basic grammar
- Covers most of the basic grammar covered in middle school grammar.


7 Learning basic vocabulary through repetitive problem solving
- The vocabulary list provided for each chapter systematically presents frequently used vocabulary.

Structure of this book

Unit
Each chapter is divided into two units to allow for more in-depth and systematic study.


Warm-up
This is the step to check the basic contents of the unit before starting full-scale learning.

First Step
We have made it possible to review the basic grammar covered in each unit.

Second Step
It is structured to solve problems while understanding the content at a higher level than First Step.


Third Step
We've designed a series of challenging problems to help you assess your understanding of each unit's content.


Writing Step
It is a step to prepare for descriptive questions, and is composed of questions that require thinking skills rather than a simple list of words.

Final Step
It consists of problems based on the contents of the two Units, which are the final step in concluding the contents of each Chapter.

Review Test
It is divided into four chapters, and is designed to review the basic content learned previously.

Achievement Test
It is organized into four chapters and consists of five multiple-choice questions and descriptive questions, so it is designed to prepare you for actual exam questions.

Practice exam
It consists of a total of 3 sessions, and all the content of each level is organized into 5-option multiple-choice questions and descriptive questions so that you can check what you have learned.