SAT writing section: confused on 2 questions

<p>In this test: <a href="http://moodle.baylorschool.org/pluginfile.php/9642/course/section/6041/2009%20WS.pdf"&gt;http://moodle.baylorschool.org/pluginfile.php/9642/course/section/6041/2009%20WS.pdf&lt;/a&gt;&lt;/p>

<p>Why is #37 B?</p>

<p>WHy is #36 E? Isn't the pronoun "they" vague?</p>

<h1>36</h1>

<p>“They” refers to “many people,” so no ambiguity. Remember–an antecedent can come after a pronoun:</p>

<p>Because he was such a disgusting pig, Marvin was ostracized by his classmates.</p>

<h1>37</h1>

<p>B has no errors. A and C inexplicably shift verb tense to future. And D and E are not questions, thus rendering sentence 7 nonsensical.</p>

<p>Thanks. For #36, is the original sentence " If they do not know a shy person, many people will jump to conclusions as to why that person is acting in this manner." too redundant or is there something grammatically wrong with it?</p>

<ol>
<li>The whole “as to why” stuff is wordy and should be removed if possible.</li>
<li>“this manner” only makes sense if it refers specifically to a manner that has been named earlier in the sentence. It doesn’t. The phrase “shy people” might imply a manner of acting, but that’s not good enough. </li>
</ol>