Hard WR questions

<p>An amateur potter [herself], the accountant offered [to help] the artist with his business accounts, complicated [as they were] [by] his unusual system of record keeping.
What is the answer here? No Error?</p>

<p>Ignore the thread. I found an answer.</p>

<p>Can you please tell me the correct answer?
Thanks!</p>

<p>It is No Error.</p>

<p>could you explain why the last clause contains no mistake?</p>

<p>What’s wrong with it? More discussion here; search the first 2-3 pages <a href=“http://talk.collegeconfidential.com/sat-preparation/782128-post-writing-questions-here.html[/url]”>http://talk.collegeconfidential.com/sat-preparation/782128-post-writing-questions-here.html&lt;/a&gt;&lt;/p&gt;