She literally gave so many unknown topics and questions in the final exam which was really critical and totally unknown,

She literally gave so many unknown topics and questions in the final exam which was really critical and totally unknown, she didn’t discuss those topics in class or was not in the syllabus. Despite taking a good preparation we couldn’t do well in that course and our GPA dropped. It was really disappointing! I also felt that we were victim to her grudge... But Don't have any objection about mid-term exams, in class she was proper but still i Won't say much student friendly