Help on some SAT writing questions

<p>ok so could some of you point out what the correct answers are for the following SAT writing questions and give alongside a brief justification for the same?!</p>

<ol>
<li>In many large cities in the United States, the presence of a [CULTURALLY] diverse population [HAS LED] to repeated calls [THAT] curricula taught [WHOLLY OR PARTLY] in languages other than English. [NO ERROR]</li>
</ol>

<p>2.Among birds [THAT FORAGE] in tree trunks, nuthatches are the only ones that [REGULARLY FEED] with their heads facing downward, [WHEN THEY OFTEN FIND] food in bark crevices [OVERLOOKED] in their upward search. [NO ERROR]</p>

<ol>
<li>Almost all animals [THAT HIBERNATE] prepare for [IT] during summer [BY EATING] large amounts of food, [WHICH THEY CONVERT] to thick layers of fat. [NO ERROR.]</li>
</ol>

<p>Dunno about 1. I feel like the “that” might need to be a “which,” or the “or” between wholly and partly might need to be an “and.” For 2, I’d say C, but I couldn’t tell you why. My best attempt at explaining it would be that “when” doesn’t really refer to a point in time. For 3, I’d say B, because “it” isn’t referring to anything.</p>

<ol>
<li>C Because that would be replaced by " calls of "</li>
<li>C Correct is ‘While finding’</li>
<li>B It has no antecedent in the sentence</li>
</ol>

<p>Still I am not sure of explanation of the first one… will be glad to here some other voices on this question.</p>

<p>bump!! need more answers</p>