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．
