Advice needed for college admissions

<p>Hi, </p>

<p>I took the 'A' Level examinations last year and I have a placing in NUS already. Currently, I am interested in studying abroad in the UK or US.</p>

<p>However, I did not perform very well and my question now is whether should I take a number of AP examinations or should I retake my 'A' Levels again to better impress the admission officer.</p>

<p>Thanks in advance!!</p>