Business Plus is a three-level integrated-skills business English course from A1 (false beginner) to B1 (pre-intermediate) levels.It has a strong emphasis on Asia. Aimed at pre-work experience university or vocational college students. Business Plus is designed specifically to meet the growing demand for workplace English in the region. In addition to the Student’s Book and Teacher’s Book’s Manual the website includes downloadable audio and supplementary worksheets to extend learning. 英語 教科書 学校 教材 勉強 参考書 ネイティブ おすすめ テキスト text Cambridge