* "We" is used when you are referring to yourself and your classmates as a group. For example: "We are learning about the American Revolution in class."
* "Our" is used to show possession of something belonging to the class. For example: "Our teacher is very knowledgeable."
* "It" can be used to refer to the class as a whole, especially when discussing the class as a concept or entity. For example: "It is a challenging class."
* "They" can be used to refer to the class as a group of individuals, especially when discussing their actions or opinions. For example: "They are all very talented students."
The most appropriate pronoun will depend on the specific sentence and the meaning you want to convey.