<p>Find the error in the sentence:</p>
<li><p>He was (a. somewhat) uncertain about (b. how to use) the new machine and (c. asked for) (d. more specific) instructions be sent. (e. no error)</p></li>
<li><p>Aerial photography is thought (a. to be) (b. the most efficient) technique (c. to gather) accurate (d. information about) the use of land. (e. no error)</p></li>
</ol>
<p>The answers are both C. Why are 33 and 34 C, I don’t see anything wrong with both of the sentences, especially #34…</p>