Instruct: Classify Amazon reviews into positive or negative sentiment
Query: wortless book

Hi, do not buy this book, it is wortless.You need teacher's CD to really hear correct sound and practice one particular sound.From student's CD you will never teach you correct isolated sound, which you need practice.Teacher's CD has only lang. department on Miamidade coll., they want you to spend money on courses in class with other 40 people once a week repeating like crowd of canary. Look for some other book with better CD.