C. It killed nearly 80% of the population
Answer:
The sentence that begins the introduction of this article excerpt is In 2008, more than one million American students gave nearly 20 million service hours to their communities
Explanation:
The introduction of any kind of written work has to be made with a topic sentence, this kind of sentence is always the first or second sentence in a paragraph, each paragraph has a topic sentence of the first paragraph the one that introduces the main idea of the complete work, in this case for the full excerpt that would be "In 2008, more than one million American students gave nearly 20 million service hours to their communities"
I am here to tell you that you should absolutely do the work yourself and that there is no way in tarnation that you should use any essay-writing services on the Internet, then translate it to Chinese then back to English. You need to just write it yourself and not do what I just said not to do.
Either "By 2007, more Americans lived in or near cities than they did in rural areas." or "<span>Even today, the need for work is a common reason people move to urban areas."</span>
