63.What does the author say about most Facebook users? A)They are reluctant to give up their personal information.
B)They don’t know their personal data enriches Facebook.
1.Is there anything else to discuss?2. The development of industry has been _______ gradual process throughout ______human existence from stone tools to modern technology.
C I left university with a good degree in English Literature, but no sense of what I wanted to do. Over the next six years, I was treading water, just trying to earn an income.
46.Dear Editor, I am a secondary school teacher of English. I would like to have pen friends all over the world for my students. They are aged 15-19 and good at swimming,
