Chapter 1
Present progressive tense
Unit 01 Present Progressive
Unit 02 Negative and interrogative sentences in the present progressive tense

Chapter 2 Future Tense
Unit 01 Will Future Tense
Unit 02 be going to future tense

Chapter 3 Auxiliary Verbs
Unit 01 Characteristics of auxiliary verbs
Unit 02 Auxiliary Verbs can·must

Chapter 4 Adjectives and Adverbs
Unit 01 Adjectives
Unit 02 Adverbs

Chapter 5 Past tense of the verb "be"
Unit 01 Past tense of the verb "be"
Unit 02 Negative and interrogative sentences with the past tense of the verb "be"

Chapter 6 Past Tense of Regular Verbs I
Unit 01 Changes in the past tense rules of regular verbs
Unit 02 Irregular past tense conjugation of regular verbs

Chapter 7 Past Tense of Regular Verbs II
Unit 01 Past tense negative sentences of regular verbs
Unit 02 Past tense questions of regular verbs

Chapter 8 Prepositions
Unit 01 Prepositions indicating time
Unit 02 Prepositions indicating place

Chapter 9 Conjunctions
Unit 01 Conjunction and·or·but
Unit 02 Conjunction so·because·when

Chapter 10 Imperatives and Propositions
Unit 01 Command Statements
Unit 02 Proposal

Features of this book

1. Customized grammar learning through step-by-step learning
- Each chapter consists of two units with detailed explanations, Warm up, Step up, Jump up, Build up writing, Wrap up and Exercise, Review Test, Achievement Test, and finally, a mock test.

2 Systematic study for descriptive problems
- In particular, Build up writing prepares you for descriptive questions.

3 Problem-solving learning that requires critical thinking skills, not just 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 step-by-step problems.

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 basic grammar
- Covers most of the basic 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
We have made it possible to review the basic grammar covered in each unit.


Step up
It is structured to help you solve problems while understanding the content at a higher level than Warm up.


Jump up
We tested how much we understood the content of each unit by solving difficult problems.


Build up writing

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.

Wrap up
It consists of problems covering the contents of both Units, which are the final step in checking the contents of each Chapter.


Exercise
It is structured so that you can review the contents of each chapter once again through the problem types you have presented.


Review Test
It is organized into 5 chapters, and is designed to review the basic content learned previously.

Achievement Test
It is organized into five chapters and consists of 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 times, and all the contents of each level are organized into 5-option multiple-choice questions and descriptive questions, so that you can check what you have learned at the end.