用A～E将下列句子排列成一段完整的对话。
( ) （1）I hurt my knee.
( ) （2）What did you do yesterday?
( ) （3）I jumped and jumped on the bed, then I fell off the bed and bumped my knee.
( ) （4）Be careful next time. Don’t go out before your knee got well .
( ) （5）What happened to you?