参考答案

正确答案：A
解析：本题还是细节题。题目问：Miss Wu怎样上旁听课?从这句话“Yes, I am. I know that the professor will keep track of my attendance but that I won't have to do any papers or take any exams(教授将记我的考勤，但我不用写论文和参加考试)”中可知，正确答案为选项A。