\"Hi! Korean 2A Workbook\" is a textbook that can be used together with the ?Hi! Korean 2A Student?s Book? in class or for self-study. You can review content step by step, from replacement exercises to expanded practice, using the grammar you learn in the textbook. In the Self-Evaluation section at the end of each unit, answer questions about the vocabulary and grammar you?ve learned to confirm your degree of understanding.