It kind of helps people work together, a lot of people tend to slack off more if they can't exactly work together.
In the year 1666, Samuel Pepys describes the Great London Fire as a terrible fire that had destroyed a large part of London.Pepys was more distressed when he is able to see the fire more closely. He observes how pervasive it is and how much devastation and adversity it has caused.
I'm not 100% sure for 9, but 10 would be: "Whom", 11 would be "Wish", 12 is "wants"