单项选择题
W: Hello. May I speak to John, please M: Sorry, he is busy repairing a customer scar.
A.Taxi driver. B.Repairman. C.Salesman. D.Secretary.
A.At 6: 50. B.At 7: 50. C.At 9:00. D.At 8:00.
A.The 5th floor. B.The 15th floor. C.The 4th floor. D.The 14th floor.