friends?” (paragraph 1)
Why does the author ask these questions?
A) He wants readers to publish their answers on the site.
B) He wants to draw our attention to read the text.
C) He wants us to find answers to the questions in the text.
9 What does the word “It” refer to in paragraph 2?
A) a computer
B) an online system
C) the Internet
10 What is the main idea of paragraph 3?
A) Scientists are still guessing the exact number of computers.
B) The computers connected to the Internet have a rich history.
C) The number of computer users is increasing
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