Grammar
There are ten questions for each level.
Questions 1-10 = A1 level - beginner
Questions 11-20 = A2 level - elementary
Questions 21-30 = B1 level - pre-intermediate
Questions 31-40 = B1/B2 level - intermediate
Questions 41-50 = B2 level - upper intermediate
Students who have completed a level should be able to get 7/10 questions on that level correct. Answers are at the end of this PDF