4.听第6段材料,回答第6至8三个小题. 6.What is the man doing? A.Looking for a smoking area. B.Waiting for his friend. C.Seeing a doctor. 7.When is it now? A.It's 3:00 pm.B.It's 3:45 pm.C.It's 400 pm. 8.Why is the man going to the second floor? A.To smoke in the smoking area. B.To look after the children. C.To catch the 736train.