<ol>
<li>Digital technology, as every marketer knows, is synonymous to speed, precision and the future. </li>
</ol>
<p>My Answer: To
Correct Answer: With</p>
<p>Is the correct idiom “synonymous witth”? </p>
<hr>
<ol>
<li>Venezuela devotes a higher percantage of its budget to education than do other large Latin American countries such as Mexico and Brazil. </li>
</ol>
<p>My Answer: than do
Correct Answer: No Error</p>
<p>Why is there no error in this sentence? I thought that “than do” should be “than does”. </p>
<hr>
<ol>
<li>Unlike the hollow body of an acoustic guitar, which acts as a sound box to project sound, the solid-body electric guitar is almost soundless without the aid of an amplification system. </li>
</ol>
<p>My Answer: (original) the hollow body of an acoustic guitar, which acts
Correct Answer: an acoustic guitar, whose hollow body acts</p>
<p>Why is my answer wrong?</p>