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I don't know what story this is from or what is really happening; however, from what I can tell, the author uses the phrase "the annals of parental vigilance" to heavily imply that Daisy's parents are extremely rigid in how they raise her, in an orthodox fashion. "Annals" is defined as yearly record keeping, and "parental vigilance" means that the mother is one that is always watching and correcting her child (from what I can tell.
Answer:
You should not speak in class while others are working since it may cause others to become distracted. If you speak while they are working, they may find it difficult to concentrate. Unless you are discussing the work in class, you will deviate from working as well. You should not speak in class while others are speaking to prevent distracting others and yourself.
Explanation:
why is this a question tho? lol