[单项选择]Television was not invented by any one person into being______ overnight.
A. nor did it spring
B. nor does it spring
C. nor has it sprung
D. nor can it spring

[单项选择]As in any business, there must be one person called （） who is highly trained, capable of directing a complex successful hotel.
A. assistant manager
B. resident manager
C. vice manager
D. general manager

[单项选择]A reserved person is one who（）speaks a little and（）gets excited．
A. always...sometimes
B. often...never
C. never...sometimes
D. always...seldom

[单项选择]
How can one receive a meal for free ？（）
A. By paying for the meal in cash
B. By ordering over a certain amount
C. By picking up the food
D. By coming to the restaurant at a certain hour

[填空题]Charles Babbage was tile person who invented the first calculating machine.

[填空题]Television Network
As one of the three major commercial networks, CBS was organized
in 1928 in which its founder, William Paley, acquired ownership of a
41．the group of radio stations. As the Columbia Broadcasting System
42．expanded its operations, and soon becoming the largest radio network
43．in the United States, it is precociously recognized the potential for the
44．rapidly evolving television broadcasting technology. On July 13th,
45．1931, it began to experimental television broadcasting in New York,
46．and ten years later it began regular black and white week broadcasts
47．over its WCBW TV station in the same city, in which became WCBS TV
48．in November 1946. With Television City in Hollywood, CBS has launched
49．the industry’s first full scale production studio there. Today CBS owns
50．television stations, radio stations, home video production and distribution.
51．The CBS Broadcasting Grou

[单项选择]All bad things are interconnected, and any one of them is （） to be the cause of any other.
A. subject
B. inferior
C. liable
D. vulnerable