？Read the text below about television network.
？In most of the lines (41-52) there is one extra word. It is either grammatically incorrect or does not fit in with the sense of the text. Some lines, however, are correct.
？If a line is correct, write CORRECT on your Answer Sheet.
？If there is an extra word in the line, write the extra word in CAPITAL LETTERS on your Answer Sheet.
Thanks to the Internet, an alternative to the traditional unhappy model of which
supplier-customer interaction is finally becoming possible. In all sorts of markets,
41．customers will soon be able to describe exactly what they want, and suppliers will be
42．able to deliver what the desired product or service without compromise or delay.
43．The innovation that will catalyze into this shift is what I call the choiceboard.
44．Choiceboards are interactive, on-line systems that allow individual customers to design for
45．their own products by choosing from a menu of attributes, or components, prices, and
46．delivery options. The customers' selections send signals to the supplier's manufacturing
47．system that set it in motion the wheels of procurement, assembly and delivery.
48．The role of the customer in this system shifts from a passive recipient to active designer.
49．That shift is just the most recent stage in the long-term evolution of the customer's role of
50．in the economy. For most of the twentieth century, the customers were "product takers" and
51．"price takers", accepting suppliers' goods at suppliers prices. Over the past two decades,
52．as customers became more sophisticated and being gained greater power over the buying process, they stopped being price takers.
(41)