<p>can somebody explain why they are the answers and what should be the correct forms please?</p>
<ol>
<li>intense preoccupation (A)ON technique (B)APPEARS TO BE (C)THE ONE trait that great pianists (D)HAVE IN common. </li>
</ol>
<p>the answer is a.. </p>
<ol>
<li>the survey (A)SHOWED THAT most shoppers who drive prefer the mall (B)MORE THAN downtown stores (C)SIMPLY BECAUSE finding parking is (D)LESS DIFFICULT at the mall. </li>
</ol>
<p>answer is b..</p>
<ol>
<li>People who wish to be (A) A MODEL should remember that not all modeling is glamorous (B)AND THAT a great deal (C)OF IT (D)IS SIMPLY tiring.</li>
</ol>
<p>answer is a. should it be models?</p>