And how do they do it? &amp;amp;gt;&amp;amp;gt; Red pens. &amp;amp;gt;&amp;amp;gt; And. &amp;amp;gt;&amp;amp;gt; Papers. &amp;amp;gt;&amp;amp;gt; And not in your case, because you always get A's, but. &amp;amp;gt;&amp;amp;gt; Clearly. &amp;amp;gt;&amp;amp;gt; They can give you a B-. 