I thank you for the information you have provided above. I meet all the requirements for the "O" subjects (5 subjects, taken at one sitting...etc etc). Currently, I am still persuing a degree in one of the local universities in Singapore. The thing is, I did combined sciences and it was just Chemistry/Biology. The pre-requites stated "Prefebly physics" and i am wondering if you know any cadets with my situation who have made it through or even short-listed for the first interview if they do not have any physics background. Do enlightened me, thanks much