I think the answer for 1 is c but I am not sure
The term that best fit the blank is RELEVANCE. The Google Adwords system is a system that is created by Google for the purpose of advertising online. Therefore, relevance is very important in this aspect as this shows how useful the ad is to the consumers who are doing the google search.
10.......................................
I believe it's A. online meeting
The answer would be <span>It is designed to promote social interaction and community building.</span>
