单项选择题


SECTION A CONVERSATIONS
In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
Questions 1 to 4 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.
What is the possible relationship between the man and the woman

A.Doctor and patient.
B.Husband and wife.
C.Father and daughter.
D.Teacher and student.