这个是要你自己描述你两年前和现在的不同之处,会用到比较级的.
I have changed a lot already.I am taller than that two years ago.At that time ,I was too short,but now I'm taller.And I'm also stronger than before.I was always ill two years ago.But now I'm much healthier.As for study,I get better grades than before,especially for English.Now I am good at English.And I will study harder from now on.