单项选择题
A.Wife and husband. B.Teacher and student. C.Employer and employee. D.Policeman and driver.
A.At 6:30. B.At 6:45. C.At 7:15. D.At 7:30.
A.On the 10th. B.On the 8th. C.On the 12th. D.On the 11th.