<ol>
<li>When mammals hibernate, their body temperatures fall to “slightly above that of the surrounding air”.
A. slightly above that of the surrounding air
B. slightly above the surrounding air</li>
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<p>The answer is A. Why is it not B? Wouldn’t “that” in A imply the body temperature of the air, which does not exist?</p>
<ol>
<li>General question - What is the difference between “whereby” and “wherein” and when do you use them?</li>
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