张学友还会开演唱会吗:o.henry was a pen name used by an american writer of short stories

o.henry was a pen name used by an american writer of short stories that is a pen ( ) ( ) a pen or a pencil? a pen a lone has gong Henry's mother was to look after the watch for Henry until he was old enough to own it 1I think the most i----- thing is to have a pen friend.2In my o-----,we shold get home early. I want to have a pen pal 韩语求助!na nao chu a hei na a I heven't a pen and I don't have a pen 的区别? He has a book and a pen和He have a book and a pen哪个对？？