Contoh percakapan 2 orang tentang asking for and showing certainty

A : hey,how the result of your english exam ?
B : the result are not good, i am remedial.
A : really ? i am not really sure that you told the truth
B : i am really.. look this,please !
A : see.. you lied me...
B : ahahaha.. but you are better value.
A : this is not nothing compared with Rizki that gets the best value.
B : you are right..
A : and you know ? this year he will join the olympics english.
B : yeah,i am absolutely sure about the news...