Jawabanmu

2014-08-29T04:55:14+07:00
A: hy...
b: hello..
a: tomorrow, there is mathematic exam right?
b: ah, yes it is...
a: I haven't learn for the exam...can you help me to study ?
b: sure...
a: how to answer this question?
b: you have to do it like that example ...is that clear?
a: yes....problem solved...
b: do you understand now?
a: yes, thank you very much!