Complete the passage. Use the word given

VIII/Complete the passage . Use the word given .(1pt)

           use            variety            numbers                     communication

Libraries form a vital part of man’s system of (1) ……………… and education. They make available – through books and a (2) …………  of other media – knowledge that has been accumulated through the ages. People in all work of life, including students, teachers, businessmen, government officials, and scientists, (3) …………….. library resources in their work. In addition, large (4) …………… of people turn to libraries to sastify a desire for knowledge. All in all, the library ranks among man’s most useful service institutions