Passage One
Questions 26 to 28 are based on the passage you have just heard.

单项选择题A. He is a full-time student. B. He is a part-time worker. C. He is going to take refresher courses. D. He has known all the details about the course.

单项选择题A. He had helped Booth murder Lincoln.B. He had made a diagnostic error.C. He had concealed the facts.D. He had given Booth help in some way.

A. He had helped Booth murder Lincoln.
B. He had made a diagnostic error.
C. He had concealed the facts.
D. He had given Booth help in some way.