DearSir，IhavetotraveleverydayfromSoukRoadtotheairport．Twobusestravelalongtheirroute：thenumber49andnumber16．Butbythetimethenumber16busreachesSoukRoaditisalwaysfull，soIcan'tgetonit．Ihavetowaitfo

Question

Dear Sir，
I have to travel e very day from Souk Road to the airport．Two buses travel along their route：the number 49 and number 16．But by the time the number 16 bus reaches 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．
       The timetable says that there are buses from Souk Road to the airport every ten minutes．If this is so，why do I have to wait half an hour for a bus nearly every day？
       The regulations （规章） say that if there are empty seats on a bus，the bus must stop at every stop where people are waiting．Why do the half-empty buses go straight past me when I am standing at the bus stop？
       The regulations say that no bus may carry m ore than 40 seated passengers and 20 standing passengers．Yesterday I was the first to get off the bus when it reached the airport．I counted the other passengers as they got off．There were 129 of them．
       It is clear that our bus companies break the regulations and think little of their passengers．Can nothing be done to make your service better？
                                                 Yours，
                                                 Tired passenger
21．The writer has to take Bus No.49 because___．
A．it is not always full                  
B．it arrives on time
C．it has fewer seats on it              
D．it travels faster
22．The regulations say that each bus may carry___passengers at most．
A.40              B.20          C.129              D.60 
23．From the passage we can infer that the writer of the letter is probably___．
A．a bus driver                             
B．an airport worker
C．an English teacher                      
D．a very tired traveler
24．What kind of letter is this passage？___
A．It's a letter of apology                
B．It's a letter of thanks
C．It's a letter of complaint                 
D．It's a letter of introduction．

Answer 1

21．A细节理解题．根据第一段I have to wait for the number 49，because sometimes there are empty seats on it．我不得不等49号，因为有时那里有空座位．故选A．
22．D细节理解题．根据第四段The regulations say that no bus may carry more than 40seated passengers and 20standing passengers可知条例规定，任何巴士不得载客超过40名乘客及20名站着的客人，所以总共可以乘坐60人．故选D．
23．B推理判断题．根据第一段I have to travel every day from Souk Road to the airport．可知我每天不得不从Souk Road 到机场，可以推断出作者在机场工作．故选B．
24．C推理判断题．根据最后一段It is clear that our bus companies break the regulations and think little of their passengers．Can nothing be done to make your service better．可知我们的公共汽车公司违反规定，对乘客的态度不好．由此可以看出这是一封投诉运输公司的投诉信．故选C．