Writing Blue Book Questions

<p>Page 150.</p>

<li>By virtue of [its] size and supersensitive electronies, modern radio telescopers are able to gather mopre waves and discriminate among them with greater precision than earlier versions could.</li>
</ol>

<p>The answer is its.
Why?
Is it because its is ambiguous?</p>

<li>The starling is such a pest in rural areas that it has become necessary to find ways of controlling the growth of [their] population.
The answer is their.
Is it because the starling is singular and their is a plural noun?</li>
</ol>

<ol>
<li><p>Its should be plural because the description is describing
modern radio telescopers</p></li>
<li><p>you got it.</p></li>
</ol>

<p>i believe the virtue of size is referring to the telescopers
and since telescopers is plural it is "their"</p>

<p>for number 8
you're correct... startling is singular, so you must use its</p>

<p>Alright.
Thanks for your help.
Ill probably have more questions soon. :)</p>