Today is so sian lo...the lesson through out is ok..lol...that mr tong very funny...haven really taught us the donno what constant thing...something like this...square root of k..lol...i did before but forgot le..lol...D&T test...hopeless le...lol....donno a single thing...lol..then after school...did that D&T folio..so damm sad la...i spent 2h just o think of the idea and is only one idea...it got rejected!!!omg...life so sad man...seriously..i got no idea to do...and think about it...zzz...im sorry for today language..forgive me please...of course...come back...dinner and then set time for God le..lol...=D