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完形填空。         A good

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完形填空。
        A good dictionary is     1    important tool (工具). It will tell you     2    only what a word means but
   3    how it    4    . A dictionary needs to be printed again about every ten years. Languages develop (发展)
and a good dictionary must      5     these new changes. 
       A new English dictionary will only tell you     6     most people use the language today. It will not tell you
what is right     7    wrong. It may tell you the right time to use a word. If only     8     people use a word, a
dictionary will     9    tell you this or not list (编列) it. 
         10     dictionary will tell you many interesting facts. If you type (用打字机打) a word and the word is too
long,    11    in your dictionary. All dictionaries show you    12    to break (拆开) a word. And they also show
you how a word    13   
       Every dictionary, of course, tells you what a word means. But some words, like "get" or "take", may have
lots of meanings (意思). In some dictionaries, the main (主要的) meanings are often listed first. In   14   , the
newest meanings are listed last. So before you use your dictionary, you should always    15    the front part.
This part explains    16   .
       Some dictionaries also show you where a word comes    17   . Do you know that the word "brand" (标记)
comes from an old word? This old word means "to burn". This is because    18    years ago people burned their
names on tables or boats to show who    19    them. They also burned their own names on their farm animals
  20    they would not be stolen.
       Your dictionary also has a lot of other interesting facts in it. After you have learned to use a dictionary, it
can become your best useful book.
1-5: B C D C B         6-10: A B C D A
11-15: C B D C D    16-20: C D A D C