since you are chinese, you should assume that the colleges will know that and assume that you have had the advantage of being able to speak it for a long time. So they will expect that you will score hi on tests.
ANY college that RECOMMENDS taking at least 3 years of a FL in HS means they WANT to see 3 years at LEAST on your transcript
. IF you CAN take Chinese 3 then do so- dont sabotage your chances of acceptance. TAKE Chinese Sr yr and in the fall , take the Chinese subject test.