1. Hyphens are used to join words, indicate pauses, and to seperate syllables. However, they are not usually used with prefixes.
2. That is true.
3. Man and eating, because when joined by a hyphen, it is man-eating which is a word commonly seen in literary books and magazines.
The speaker os saying it was to be expected.
Answer:
At the beggining Buck was living in a nice warm place and and he liked where he was living, but at the end he was taken to a very cold place where he was with other dogs to help find gold.
Explanation: Hope it helps but you should really read it its not that long.