Citation simply means when a source is being referenced. Citation simply means that one is telling the person reading it that part of the work was copied or gotten from another source.
Thesis statement is a summary of an article's or the main point of an essay.
The transition is also referred to as the linking word as it shows the relationship that exists between the paragraphs of a particular essay, speech or article. It shows the relation between ideas.
In the question above, Miguel should add transitions to improve the paragraphs.
Imagery is when you describe something visually with words. In this sentence, "sharp hiss" is imagery because it makes you think of what is happening like an image.