A:you know, you are so lazy. you don't even go to the school activity.
B:yeah, I am aware of that. I just can't find the point of doing such a thing. I mean we've all got tired after school. should we just leave some time to ourselives and get refreshed? not going to some stupid school activity.
A:you might be right on this. I don't wanna go either. but the school got the rules that everybody should join it unless you have a good reason. do you have a good reason?
B:no, not now. but I will come up with one.
A:oh,come on,you know better than anyone that what you are doing is wrong. besides,it will do us some good though.
B:alright, I guess you are right. I will try to go next time.
A:that's the spirit.