The sender is focus because it is the “main idea” of an essay.
7.Flat characters are characters that do not change their roles. They are important because most of the time they play a supporting role to the main character
8.People tend to find the book more interesting when there is a suprise in the book
Actually there are some exceptions in some cases though: a/an
example: "not only is there 3 species, but there is a 4th specimen."
