Nonfiction books are about anything that has happened in real life, such as a biography or an autobiography.
The word from the passage that gives the best indication of the speaker's tone would be : scream
which gives the passage some sort of anxious/desperate tone with this sentence : his shadow shouts on a nightmare scream
hope this helps
I think the main reason why the Great Wall was rebuilt in the fourteenth century is a will to keep out the Mongolian invaders from the north (answer B). It took place during the Ming dynasty which had quite a big problems with the invasions before.
Answer:
1- G (I'd like to take this opportunity...to thank you for coming today)
2- C (My presentation is...divided into three sections)
3- B (You are certainly...aware that the product is)
4- J (I'd like to draw...your attention to)
5- E (As you can... see, the product is)
6- D (I'd like to move...on to the next stage)
7- A (This graph allows...us to demonstrate)
8- H (It's worth noting...that sales have increased since)
9- F (How should this be...interpreted)
10-I (It is possible...to conclude that)
Hope this helps! :)