4. Choose the best options to complete the sentences. 1) Food must be heated to a high temperature to kill harmful a) molecule b) cell c) bacteria 2) A device for playing a digitally encoded audio on an optical disk is a d) meteorite a) printer b) keyboard c) phone d) CD player 3) Someone who dislikes new technology, especially computers is a a) engineer c) computer geek b) technophobe d) programmer 4) I don't suppose is better than a real smile, or a real hug a) a comment c) an emoticon b) a cookier d) a fraud 5) My grandmother has become a real since we got her new computer hooked up to the Internet. a) prodigy c) system administrator b) silver sufer d) hacker 6) Mark Fox is a successful journalist. He a big salary and his articles in newspaper. He all over the world to write about world events. a) will play/weren't published/sent c) paid/are published/isn't sent d) is paid/are published/is sent b) was paid/published/shall be sent 7) Barthelemy Thimonnier, the first functional sewing machine, was a French tailor. c) which invented a) who invented d) invented b) that invented he heard a strange noise that came from the ceiling. c) Reaching the top of the stairs a) Reached the top of the stairs d) Mike reached the top of stairs b) Mike reaching the top of the stairs water. 9) The Earth's surface mostly c) has been covered with a) is, covered/with d) are, covered by b) was, covered/by pleasant surprise! c) How a) What d) Such a b) What a 11) The computer I bought last week is already broken. a) which d) whom b) when 12) I will not talk to him he apologizes for what he did. c) because a) until d) although b) while.