THE MAIN IDEA OF THE READING TEXTA. AN IMPORTANT PART OF WORLD HIST...

5. the main idea of the reading text

a. An important part of world history is the story of communication.

b. In prehistoric times, for example, people did not have books.

c. Then people formed towns, and then cities, as safe places to live.

Question 7

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a) Choose the letter of the underlined portion which is not correct and correct it