<p>hello, im signed up to take writing, iic and ushistory. but I want to switch it to writing, biology, and maybe IC (still deciding).</p>
<p>what do I have to do? who do I have to find at the test center?</p>
<p>thanks.</p>
<p>you can just switch when choosing what tests your taking, so instead of taking iic and us, just take bio and IC</p>
<p>I did this last year to switch from physics to US</p>