单项选择题

Directions: In this section, you will hear one long conversation. At the end of the conversation, 4 questions will be asked about what was said. You will hear both the conversation and the questions only once. After each question, there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the centre.