What is the main purpose of the author writing the text?

(单选题)41.（   ） (单选题)Facebook’s ______ is privacy, so one way to defeat this comp (单选题)Considering the chances of studying in a top university ____ (单选题)______ in seeking time and wealth, he neglected his communic (单选题)Parking garages downtown ______ to be very expensive, taking (单选题)______ good knowledge of first aid will keep us safe and hel (单选题)Since not every infected person has symptoms, experts sugges (单选题)______ in the city center is a shopping mall, ______ used to (单选题)Three teenagers witnessed a murder when they were taking a p (单选题)It is not who you are but ______ you are capable of ______ w