A : are you sure about the party?
B : of course I am! why wouldn't I?
A: the teachers will probably know about it.
B: no, they won't.
A : Are you sure Indonesia will win the match?
B : I'm certain because our team always play beatifully
A : Are you sure Alliando will come to our school?
B : I,m uncertain because Aliiando very busy

maaf kalo salah