Error in Princeton Review SAT/PSAT Book 2013?

<p>Page 419:</p>

<p>The problem of food and aid [distribution is frequently compounded in certain countries where] corrupt officials and poor infrastructure (making) accessing the neediest people all the more challenging.</p>

<p>Should the (making) be (make)? </p>

<p>The problem of blah blah is compounded in countries where blah and blah (make) accessing the blah blah challenging?</p>

<p>while I’m at it: why does this make sense below (Purdue Owl)</p>

<ol>
<li>Change the phrase that dangles into a complete introductory clause by naming the doer of the action in that clause:</li>
</ol>

<p>Without knowing his name, it was difficult to introduce him.</p>

<p>Who didn’t know his name? This sentence says that “it” didn’t know his name. To revise, decide who was trying to introduce him. The revision might look something like this:</p>

<p>Because Maria did not know his name, it was difficult to introduce him.</p>

<p>Why isn’t it, Because Maria did not know his name, she had a difficult time introducing him ?</p>

<p>Doesn’t the clause after the comma have to refer to the original clause?</p>