Because it really does a lot to your essay. It makes it sound a lot better and more advanced. It makes your essays sound more adult and not like children books. It makes it more mature.
Multiple choice questions are also called closed ended questions
It's a verb that has to have a ACTION and a SUBJECT is the sentence.
It is a simile, because the author used the words (like) and (a), those are always hints that it is a simile.