You're missing an apostrophe for "it's", because you are talking about a day and how it is going. When you using "its" it is talking about the possession someone/thing has. You also need to capitalize the "W" in "What" because that is the start of your question and sentence. Lastly, You need to put a question mark at the end of your question for ending punctuation.
In the beginning of the story, “the children are pressed to each other ... Bradbury states," the students surge about her" to shove Margot into the closet.