<p><span style="font-size:20px;"><span style="color:#27ae60;">Right Answers</span></span></p>
<p><strong>Blank 3</strong>: This is the easiest one to tackle first. If we look towards the end of the sentence, after the semi-colon, we can see a contrast happening with this structure: "Even with A, B", so we can use <strong><span style="color:#8e44ad;">Math Strategy</span></strong> to solve this one. The left-hand side of the comma suggests that we have more roads and bridges now (improvement), and the right-hand side is talking about the environment (woods and rivers). To contrast the idea of the improvement in infrastructure, Blank 3 should be something like "challenge" or "difficulty".</p>
<p>The best match for this would be <span style="color:#27ae60;">impediment</span>, since it conveys the idea that the environment is challenging, even with the improved infrastructure.</p>
<p><strong>Blank 2:</strong> Now, we can work backward from Blank 3 to solve Blank 2, also with the <strong><span style="color:#8e44ad;">Math Strategy</span></strong>. The semi-colon signifies a continuation of the ideas. Looking to the right, we have the idea of the environment being challenging, so a similar idea should be expressed on the left. Since Blank 2 describes the place (environment), it should also be something like "challenging".</p>
<p>The best match here would be <span style="color:#27ae60;">an unpropitious</span> signaling that the environment is an "unlucky"/"unforgiving" place to traverse.</p>
<p><strong>Blank 1:</strong> Now, we can do the same thing again! We can apply <strong><span style="color:#8e44ad;">Math Strategy</span></strong> one last time, using the comma between Blank 1 and Blank 2. On the right side, we have the idea of the place being "challenging" to pass through, so the left-hand side should also convey this idea. So, similarly, Blank 1 should be filled with a word like "challenging".</p>
<p>The best match here would be <span style="color:#27ae60;">impenetrable</span>, which perfectly conveys the idea of the forest being challenging to get through.</p>
<p><span style="font-size:20px;"><span style="color:#e74c3c;">The Wrong Answers</span></span></p>
<p><strong>Blank 1:</strong></p>
<ul>
<li><span style="color:#e74c3c;">inconsiderable:</span> This choice would be <strong>improper usage</strong>. It doesn't make sense to think of a forest as "inconsiderable".</li>
<li><span style="color:#e74c3c;">uncultivated:</span> This choice has <strong>no evidence</strong>. There's nothing in the passage regarding any kind of farming happening at the forest.</li>
</ul>
<p><strong>Blank 2:</strong></p>
<ul>
<li><span style="color:#e74c3c;">a makeshift:</span> This choice has <strong>no evidence</strong>. There's nothing suggesting that the forest was fabricated quickly.</li>
<li><span style="color:#e74c3c;">an unremarkable:</span> This choice has <strong>no evidence</strong>. We don't know how typical or unusual the forest is compared with other forests.</li>
</ul>
<p><strong>Blank 3:</strong></p>
<ul>
<li><span style="color:#e74c3c;">resource:</span> This choice has <strong>no evidence</strong>. There's nothing mentioned about how we can make use of the forest.</li>
<li><span style="color:#e74c3c;">passage:</span> This choice has <strong>no evidence</strong>. We don't know if the forest is an important route.</li>
</ul>