阅读下列各句，根据其内容重新排列所有句子的顺序，使其构成意义完整正确、逻辑顺序合理的语篇。
Have you ever saved anyone’s life?

A．One night in July，Danny and Gary，two 15－year－old schoolboys，were chatting online．

B．On the girl’s Facebook．she was writing scary apologies（道歉）and sad goodbyes．

C．The two boys are Facebook friends for a long time，but they have never met before．

D．They have created a Facebook page to help keep teens from suicide（自杀）．

E．On that hot night，the two boys were talking about how to help teens in danger when they suddenly found a new message from a girl’s Facebook that was showing her suicidal feelings．
F．It’s a place where teens can ask for advice，express ideas，and support other teens．
G．The next morning，the girl wrote back to Danny，“I would be dead right now without your help．”
H．When the girl said she still decided to end her life，Danny called the police，and they finally saved her in time．
I．The two boys each sent caring messages to the girl，who went to Danny’s school，asking her to reconsider．
J．“To know that the girl’s life was in our hands was really scary．We must do something，”says Danny．