小题1:D
小题2:B
小题3:C
小题4:C
小题5:A
小题1:细节理解题，由原文的称呼Dear Sir可知。
小题2:细节理解题，由原文的But by the time the number 16 bus gets to Souk Road, it is always full, so I can’t get on it. I have to wait for the number 49, because sometimes there are empty seats on it.可知。
小题3:细节理解题，由原文的If this is so, why do I have to wait half an hour for a bus every day?可知。
小题4:细节理解题，由原文的The regulations say that no bus may carry more than 40 seated passengers（乘客）and 20 standing passengers.可知。
小题5:理解推断题，通读全文理解可知。