What is the relationship between the speakers?
A.Teacher and student.
B.Doctor and patient.
C.Waitress and customer.
听一段材料，回答下面几个小题。Why does the man want to talk to Dr. Perkins on the phone?
A. To discuss something with the doctor.
B. To ask Dr. Perkins to give a lecture.
C. To see him about his illness.What is the doctor doing at the moment?
A. Giving an operation.
B. Giving a lecture.
C. Having a meeting.
听一段材料，回答下面几个小题。What's the probable relationship between the two speakers?
A. Salesperson and customer.
B. Old school friends.
C. Fellow workers.What do we know about the woman in the dialogue?
A. She is fond of her work.
B. She's tired of traveling.
C. She is interested in law.
听一段材料，回答下面几个小题。What's the relationship between the two speakers?
A. Teacher and student.
B. Boss and employee.
C. Husband and wife.What happened to the man?
A. He failed his final test.
B. He was out of work.
C. He gave the students a hard final.
When did the man arrive?
A.8:00.B.8:30.C.8:45.
Where does the conversation take place most probably?
A. At a bus stop.
B. At a railway station.
C. In a bank.