根据所给内容排序，在题前括号内填上阿拉伯数字。
( ) A girl. She’s quiet and friendly.
( ) Her name is Lucy.
( ) Mum, I have a good friend.
( ) What’s her name?
( ) Really? A boy or girl?
【答案】3 5 1 4 2
【解析】
题目：根据所给内容排序，在题前括号内填上阿拉伯数字。
关键字：