根据下列文章,请回答 1~21 题。 TextMost radio and television stations in the United State
根据下列文章,请回答 1~21 题。
Text
Most radio and television stations in the United States are commercial stations,________26is to say, they earn their money from _______ 27or commercials. Private companies purchase radio and television_______28from the commercial stations in order to_______29their products. Cable television stations are also _______ 30stations, though they do not usually have advertisements. _______31watch cable stations, people must pay the cable TV company a certain amount of money each _______ 32
ublic radio and television stations, on the_______ 33hand, do not have advertisements and people do not have to _______ 34to watch them. These stations gain their money_______ 35the government, private companies, and from some of the36who watch or listen to their programs. The _______ 37government and some large corporations give _______ 38, large gifts on money, to the public stations. Small businesses and people also_______39money to their local public radio and television stations.
ABC,CBS,and NBC are the three_______40commercial radio and television _______ 41in the United States. Most local commercial radio and TV stations _______ _______42their programs from one of these national networks. _______ 43example, each network has a TV news program in the evening, _______ 44the local stations broadcast in addition to their_______45local news programs.
第 1 题
A.that
B.this
C.it
D.which