Writing Section HELP!!!

<p>HI, as you can infer from the title, I'm having a tough time on the Writing section of the SAT Reasoning test. </p>

<p>I am a senior and the January 09 is going to be the LAST test. </p>

<p>Can anyone give me good advise on how to hike my score up to the 700s from 550~650s?
I am particularly interested improving in the multiple choices bit.</p>

<p>I am really desperate because I have only 20 days... Thanks in advance</p>