Part I listening Comprehension (25 minutes,30 marks)

　　Section  A (5 marks)

　　In this section, you will hear five short conversations. Each conversation will be read only once .After each conversation, 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.