添削

Last week,a shoplifter went to the department store on 526 le duan street.

A shoplifter is a girl.she is just 15 years old.she stole three new mp3 from this department store.unfortunately,the asistant saw her stole them.as soon as,the assistant called the police.the police immediately arrested a shoplifter .however ,a shoplifter is 15year old,so she only paid 3 new mp3 and she had to guarantee that don't again.

Please, help me check mistake on this paragraph.

Thank you so much,