It has to be right...

Nothing doing. Not the first time but after many attempts then we are assure of its perfection. Even that they must be a minor mistake here and there. But sometimes we refuse to admit the mistakes we have been doing. There are students who just don't bother to know what mistakes they have been making. They don't ask what was wrong with their answers. And for some, they just don't bother to come and see me and get their test paper back. How often they do that? I have lost counts. If I were to conclude on my experiences, I don't know whether I am right or wrong. Statistically, it has to be right..