@ OrchidBloom thanks for the reply. I looked at the international admissions sections of some Universities and found out that i don't require to give SAT only.
Right now i got 87% in 10th grade. I want to study in UOFT, Waterloo, McMaster and Ryerson. I found out that Waterloo starts individual selection from the low-90s for mechanical engineering, from the high-80s for electrical engineering .
Do you think that i have a chance getting accepted there or in any other University as mentioned above if i maintain my percentage till grade 12?