Read the following passage and then choose the most suitable word or phrase for each space.
Reference books are not designed to be read from the first page to the last but rather to be consulted to answer the questions and provide both general and specific pieces of information. One of the most (35)_____ -used reference books is a dictionary, which provides information about words. It lists meanings and spellings, (36)____ how a word is pronounced, gives (37)____ of how it is used, may reveal its origins and also lists synonyms and antonyms. To help you find the words faster, there are guide words at the top of each page showing the first and last words on that page - and of course it helps to know the alphabet! There may be numerous special sections at the back with (38)____ about famous people and places, lists of dates and scientific names, etc. There is usually a section at the front (39) ____ how to use the dictionary, which includes the special abbreviations or signs.
(38)____
A.stories
B.facts
C.materials
D.events