B2 English exams require a lot specific vocabulary (such as collocations, phrasal verbs, dependent prepositions and idioms) and language points. Why not use a specifically designed aid to organize and enhance your learning? It contains sections you need to complete for a more coordinated learning approach. It can be used in addition to a coursebook or a course in a language school, as well as independently. 

Once you have completed all the sections, you will be provided with a solid background for B2 level exams in terms of grammar, vocabulary and writing tips. Of course, don’t forget that being at a certain language level requires practicing the four skills as well: reading, writing, listening and speaking!