I don't know the cause of his abrupt leave

I don't know the cause of his abrupt leave To tell you the truth,Lucy,I don't even know the name of his 英语翻译Yes I ve had a vision of love also,Cause I don't know lo I don't know when to leave cause the night is getting cold and I don't know where I 英语翻译I don't know how to begin Cause the story has been told I don't know when we will leave the city.(同义句） I don't know（ i don't see how i can help being the cause of much misery to i don't know the ----of the story I don't know the corret( )of the word. I don't know how to leave you,and out of nothing at all. 请大家 I don't know his ( )ddr( )ss