The subject of the sentence is state, the subject is the class.
An understood subject is a subject that is not stated in the sentence, usually an imperative sentence. Example:
"Stop!" (the understood subject is you)
"Bring me my glasses." (the understood subject is you)
An understood subject can be a pronoun that has no antecedent, the subject is understood by the speaker and the person spoken to. Example:
"Look, at her. She needs a fashion makeover" (only the speaker and listener know who is the subject of these sentences)
"Oh, here is the one I've been looking for." (the speaker is likely holding up or gesturing toward the object referred to as 'the one')
Class is subject; begins is predicate
Are you too lazy to read the chapter... I'll see you in class tomorrow...cheaters never win.
The subject in many imperative sentences like this one is an understood "you."
i think ther is know classes tomorrow because their is a holiday.....
chapter 50 something
Tomorrow.
The class trip in Fruits Basket takes place in Chapter 33 of the manga.
YOu have a law class tomorrow you should study?
I have to memorize this poem for tomorrow's class!
How hard your exams will be in school will depend on how well you understood the subject as well as how hard you studied. Generally, if you paid attention in class and studied the exam should not be too difficult.
chapter 12 phycisc class 10
Simply, the past tense word of "understand" is "understood". For example: The class "understood" what they were being taught.