单选题 Woman: Now, Richard, would you care to explain how the answers to the test questions appeared on your desk?
Man: I can"t, Professor Harley. Someone must have left them on my desk.
Question: What is the man"s problem?
【正确答案】 A
【答案解析】[解析] A选项“他被怀疑考试作弊。”B选项“他把答案留在桌子上了。”C选项“他不知道怎么解释。”D选项“他不知道问题的答案。”