单项选择题


Section A
In this section, you will hear five short conversations. Each conversation will be read only once. At the end of each conversation, there will be a pause. During the pause, read the question with 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.
At what time of day does this conversation most likely take place

A. Sunrise.
B. Sunset.
C. Noon.