<p>QUestion 1: Katherine felt that she (has not had) (any understanding of) the (highly intricate workings) of the stock market (until) her uncle took her into the New york stock exchange.</p>
<p>Ans: A: Does it have to do with tense issue?</p>
<p>Question 2: could you clarify whats the error for this question?</p>
<p>Not very particular (in) nesting (sites), house wrens (may nest) in birhouses, mailboxes, building crevices- even in the pockets (of) hanging laundry.</p>
<p>Error: A</p>