The class was great behaved when the substitute was here
The classes' scholastic results far outshine their sports achievements this year.
One way to use "class's" in a sentence is: "The class's project was a group effort that received high praise from the teacher." Here, "class's" is used to indicate possession or belonging to the class.
working class hero's is a band.
The term class interval is used in statistics.
He is giving the lecture in a class
This class will benefit me greatly.
There is rich, middle class, and poor. I, myself, am middle class.
Example sentence - My favorite college class is zoology.
Please use First-Class postage on letters.
You Should Cooperate In Class Everyday.
I was hieing to get to class on time when I tripped.
Your new class is in that building over there.
I have to memorize this poem for tomorrow's class!