Simply taking a test and checking answers is not enough. To truly benefit, learners should follow a cycle: . After completing the PDF, note which grammar points were problematic. Then, return to a textbook or online resource to study those rules again. Finally, retake a similar test (or the same one after a few weeks) to measure improvement.
in PDF format that include "Use of English" sections specifically testing grammar. Oxford University Press : Provides Oxford Practice Grammar grammar test b2 level pdf