When the exam is over, you should hand in your exam papers, finished or .
A. something
B. otherwise
C. so
D. else
网友回答
A. something
(答案→)B. otherwise
C. so
D. else
解析：句意: 考试结束时,无论你完成还是没完成,你都应该交上试卷。or otherwise为固定短语，意思为“或其他情况；或相反”。or so大约；or else否则；不然。