Password is a(n) (1) series of characters that enables a user (2) a file, computer or program. On multi - user systems, (3) user must enter his or her password (4) the computer will respond to commands. The password helps ensure that unauthorized users do not access the computer. In addition, data files and programs may require a password.
Ideally, the password should be something (5) could guess. In practice, most people choose a password that is easy to remember, such as their name or their initials. This is one reason it is relatively easy to break into most computer system.
In every cultivated language there are two great classes of words which, taken together, comprises the whole vocabulary. First, there are those words (76) which we become acquainted in daily conversation, which we learn, that is to say, from the (77) of our own family and from our familiar associates, and which we should know and use (78) we could not read or write. They concern the common things of life, and are the stock in trade of all who (79) the language. Such words may be called "popular", since they belong to the people at large and are not the exclusive possession of a limited class.
On the other hand, our language comprises a multitude of words which are comparatively (80) used in ordinary conversation. Their meanings are known to every educated person, but there is little (81) to use them at home or in the market place. Our first acquaintance with them comes not from our mother’s (82) A. at
B. with
C. by
D. through
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