at least the class average was ninety percent

Test question: Why is it important to know homophones?

It is important to homophones because you want to wich is wich.

It is important to know because when you write one homophone but how do you the difference in those three or two.

So that you don't get confused and right the wrong thing in a sentence.

Personally I think its important because your sentences and grammars wouldn't make sense.