阅读理解Dearsir,Ihavetraveleverydayfrom

阅读理解 Dear sir ,
I have travel every day from Souk Road to the airport. Two buses travel along the routes: the(路线): the number 49 and the 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 true, why do I have to wait half an hour for a bus nearly every day?
The rules 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(一直)past me when I am standing at bus stop?
The rules say that no bus may carry more 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 people.
It is clear that our bus companies break the rules and think little of their passengers. Can nothing be done to make your service(服务) better?
Yours
Tired passenger1.This passage is __________A.a messageB.a talkC.a storyD.a letter2.The writer has to take Bus No. 49 because______A.it arrives on timeB.it is not always fullC.it travels fasterD.it has fewer seats on it3.How long does the writer usually have to wait for a bus?A.Ten minutesB.One hourC.Half an hourD.Nearly a day4.The rules say that each bus may carry ________ passengers at mostA.twentyB.fortyC.sixtyD.one hundred and twenty-nine5.From the passage we can see that__________A.the bus service was poorB.no passengers took their busesC.no buses except the No. 49 bus passed Souk RoadD.the writer was always the first to get on bus

DBCCA解析1.根据本文的开头及结尾，可知这是一封信，故选D。
2.根据I have to wait for the number 49 because sometimes there are empty seats on it.描述，可知这趟车上有空位，故选B，它不是总满着。
3.根据If this is true, why do I have to wait half an hour for a bus nearly every day?描述，可知他每天大约等半个小时的车，故选C。
4.根据The rules say that no bus may carry more than 40 seated passengers and 20 standing passengers.计算可知40+20=60，故选C。
5.根据Can nothing be done to make your service(服务) better?及上文描述，可知公交公司的服务不怎么样。故选A。

就是这个解释