填空题.These days, people who do 1 work often receive far more money than people who work in offices. People who work in offices are frequently referred to as "white-collar" workers for the simple reason that they usually wear a (n) 2 and tie to go to work. Such is human nature, that a great many people are often willing to sacrifice higher pay for the 3 of becoming white-collar workers. This can give 4 to curious situations, as it did in the case of Alfred Bloggs who worked as a(n) 5 for the Ellesmere Corporation. When he got married, Alf was too 6 to say anything to his wife about his job. He simply told her that he worked for the Corporation. Every morning, he left home dressed in a smart black suit. He then 7 into overalls and spent the next eight hours as a dustman. 8 returning home at night, he took a shower and changed back into his suit. Alf did this for over two years and his fellow dustmen kept his secret. Alf's wife has never 9 that she married a dustman and she never will, for Alf has just found another job. He will soon be working in an office. He will be earning only half as much as he used to, but he feels that his rise in 10 is well worth the loss of money. From now on, he will wear a suit all day and others will call him "Mr. Bloggs", not "Alf". A. knowledge B. rise C. discovered D. privilege E. embarrassed F. collar G. strengthened H. envious I. status J. changed K. before L. mental M. dustman N. manual O. willing