聽第5段對話，回答三個小題。
（1）What's the relationship between the speakers？
A.Teacher and student.
B.Doctor and patient
C.Passenger and driver
（2）When will the plane take off？
A.At 9：15.
B.At 9：45.
C.At 10：15.
（3）Why is the woman worried？
A.She will be late for her plane.
B.The police are by the roadside.
C.The man drives the car too fast.