I was very disappointed not to be able to go to the jazz concert last Friday．The announcement in the paper said that you could buy tickets at the theatre box office in Richland Hills any day between 10 : 00 and 4 : 00．Since I work from 9 o'clock to 5 : 30, the only time I could go to the theatre was during my 45-minute lunch break．Unfortunately, the theatre on the other side of the town, and the bus service between my office and Richland Hills is not very good．But if you are lucky, you can make the round trip in 45 minutes．Last Monday, I stood at the bus stop for fifteen minutes waiting for a bus．By the time I saw one come around the corner, there was not enough time left to make the trip—so I give up and went back to the office．The same thing happened on Tuesday, and again on Wednesday．On Thursday, my luck changed, I got on a bus right away and arrived at the theatre in exactly twenty minutes．When I got there, however, I found a long line of people at the box office．I heard one man say he has been waiting in line for over an hour．Realizing I would not have enough time to waiting in line, I caught the next bus and headed back across the town．By Friday I realized my only hope was to make the trip by taxi only which took me 10 minutes, but it felt like an hour to me．When I got to the theatre, I was relieved to see that nobody was waiting in line．The reason, I quickly discovered , was that they had already sold all the tickets．
1．The writer is probably_________．
A．a worker B．a college teacher
C．manager of a company D．a clerk
2．He learned ________________________ that there would be a concert last Friday．
A．from his friends B．from one of his classmates
C．over the radio D．from the newspaper
3．He tried to go to the theatre every day but only managed to get there ________________.
A．once B．twice C．three times D．four times
4．One day the writer took ________________________ to get to the theatre by bus．
A．forty-five minutes B．fifteen minutes
C．exactly twenty minutes D．exactly twelve minutes