1. All sections for successful passing of the exam are present in the appendix with additional examples and tasks to consolidate the passed material.

2. Online access from any smartphone to all tasks to prepare for the exam.

3. The ability to pass one test in just 10 minutes and immediately work on the errors.

4. A large number of topics. 10 chapters for each skill tested during the Knowledge Exam.

5. Work on grammar. Special vocabulary assignments with over 500 common exam words and basic grammatical structures.