✔ 最佳答案
I really doubt that what you heard is the truth.
Due to your age (until you reach 18), your local school district will need to either kicking you into a high school or recognizing your previous education for further advancement.
The U.S. is one of the few non-U.K. and Commonwealth countries that fully recognizes Hong Kong-based public examination, such as HKCEE/HKALE/HKDSE. The only issue is they will read the result as it is, which put most of you will not make it to a typical 4-year university and end up with community college.
In theory, it takes 2 year to complete community college. In practice, it is about 2-3 years due to budget issues.
Financial aids are eligible to all legal immigrants based on need.
My suggestion - the more time you spent in high school, the more chance you are wasting.
I assume you are from New York City. In this case, all community colleges in New York City are under City University of New York. And all 4-year public universities are under City University of New York as well. So as soon as your result look good, you should have no major issue in transferring.
It will be another story if you want private schools like New York University or Columbia.