Help! Mega ultra hard writing questions!

<ol>
<li><p>The survey <a href="A">showed that</a> most shoppers who drive prefer the mall <a href="B">more than</a> downtown stores <a href="C">simply because</a> finding parking is <a href="D">less difficult</a> at the mall. <a href="E">No Error</a>
The answer is B, but it sounds grammatically correct. Why?</p></li>
<li><p>Professor Chen repeated <a href="A">her point that</a> the hero, if <a href="B">given</a> the chance <a href="C">to relieve</a> the moment, would choose to <a href="D">do it</a>. <a href="E">No Error</a>
The answer is D, but I cannot pin point out why D is wrong. Why?</p></li>
<li><p>[Although the global food crisis is most obvious in the tropics, the] temperate zones may have a similar problem soon.</p></li>
</ol>

<p>-There is no error in this sentence but there is another choice that says "Although the global food crisis had been most obvious in the tropics, the" and this sounds more proper to me. Can someone please explain to me why the choice I chose is grammatically incorrect?</p>

<ol>
<li>High school graduates usually do not end up earning as much income as college graduates [do, this being why many high school students] go on to pursue college degrees.</li>
</ol>

<p>-The answer is "do; this fact explains why so many high school students." But the semi-colon and the phrase "fact explains" sounded unnecessary, so I choice this "do, explaining why so many high school students" because it is concise and it did not mangle with the original meaning of the sentence.</p>

<p>weird they are kinda hard. I could not get the first one./</p>

<p>second one I think the ‘do it’ part is not specific enough.</p>

<p>third one: the crisis is obvious in the tropics, but the will have it soon…it just makes sense to me. Present > future, instead of past > future.</p>

<p>fourth: the choice that you selected is improper because it does not specify what is 'explaining why. Instead it should be ‘which explains why’ or ‘which is why’…so the next best choice is probably the other one.</p>

<p>Second one, she’s not doing the moment… I think a proper fit would be “do so”</p>

<p>The first one is an idiom error. The correct idiom is “prefer X over Y” or “prefer X rather than Y.”</p>

<ol>
<li><p>Yes it is an idiom error, but the correct idiom is actually “prefer ____ to ____”</p></li>
<li><p>Ambiguous pronoun. “do it” should be replaced by “do so.”</p></li>
<li><p>Your choice would imply that the food crisis has ended. This one is difficult to explain. </p></li>
<li><p>It isn’t clear what “explaining” articulates upon. “This fact explains…” makes the sentence clearer.</p></li>
</ol>

<p>for 4 “,explaining” makes it a run on sentence (or comma splice) because there is nothing to connect explaining with the beginning of the sentence.
The semicolon corrects the run on.</p>

<p>jamesford - Quick question, but is saying "prefer ___ over ____ " still gramatically correct? Or is it correct but “prefer ___ to ___” is better?</p>

<p>On the SAT, it will always be “I prefer x TO y” since it only tests the most common idiom.
Anything else is considered wrong</p>

<p>There won’t ever be a question that asks you to determine the “more correct” of two answer choices. One choice will be correct, and the other wrong.</p>