单项选择题


In this section, you will hear five short news items. Each item will be read only once. After each item, there will be a pause. During the pause, read the question and the three choices marked A, B and C, and decide which is the best answer. Then mark the corresponding letter on the answer sheet with a single line through the centre.
How many American servicemen missing from the Vietnam War shown in the recent photograph offered by a private organization

A. two
B. one
C. three