Often split into parts for specific regional curricula.
If you have a file named B1.part1.rar , you will likely need B1.part2.rar (and any subsequent parts) to extract the contents. You must keep all parts in the same folder and open only the first one to begin the extraction process. B1.part1.rar
Highly popular for grammar and vocabulary practice. Often split into parts for specific regional curricula
Exercises for self-study and the corresponding keys to check your work. B1.part1.rar