試著回答一下

knock, knock...
"who's there?"
"ya"
"ya who?"
"yahoo"
"i don't know you."

so, as you can see, you heard the voice but you can not get in. why?

所有跟帖： 

• knock knock joke? -vtcc- ♂ (313 bytes) () 07/20/2008 postreply 09:28:21

• 回複：thanks vtcc, however -dongdongya- ♀ (275 bytes) () 07/20/2008 postreply 10:25:36

• another suggestions -vtcc- ♂ (411 bytes) () 07/20/2008 postreply 11:46:21

• 回複：another suggestions -dongdongya- ♀ (145 bytes) () 07/20/2008 postreply 14:36:03

• You are welcome -vtcc- ♂ (0 bytes) () 07/21/2008 postreply 08:01:59