The series is specially designed for students from intermediate to proficiency level. Each book consists of five modules and provides systematic preparation in all four language skills - listening, speaking, reading and writing - required at these levels. The Student?s Book and the Workbook are designed to be covered in approximately 100 to 120 hours of classroom work. Это и многое другое вы найдете в книге Upstream: Advanced C 1: Workbook (аудиокурс на 2 CD) (Virginia Evans, Lynda Edwards)