A : Hey, good morning. How's life ?
B : Good morning, i am well, i wish you too.
A : Thank you. I am fine too. Oh yeah, have you finish the mathematics task ?
B : Huh ? Is there any task ? No, i haven't. 
A : hey! there's a task from Mr. Rudy, it should be collected today.
B : Oh my God. Is that a task about logarithm, isn't it ? i have to do it now. Could you please help me ? cause i am not perfectly understand about it.
A : Yes. Sure. Come on.
B : Oh thank you so much, you're really my best friend.