The whole, all of the, and all a are different ways of using the word \”the.\”
\”The whole\” is often used to refer to the whole collection, organization, or thing being referred to. For example, \”The whole of the team worked hard on the project.\”
\”The whole\” is also used to refer to the whole of something, such as the whole of a person\’s character or the whole of a piece of cake. For example, \”I don\’t want to eat all of the cake, because it\’s too sweet.\”
\”All of the\” is used to refer to all the parts or pieces of something. For example, \”All of the books in the library are on the second floor.\”
\”All of the\” is also used to refer to all the things or people mentioned in a sentence, such as \”All of the students in the class are studying hard.\”
\”All a\” is a shortened form of \”all of the\” and is often used in casual conversation. It is not a standard word and is not used in many formal settings.
In summary, \”the whole\” is used to refer to the whole thing, \”all of the\” is used to refer to all the parts, and \”all a\” is a shortened form of \”all of the\” and is used in casual conversation.