下面短文中的划线部分是错误的，请改正，不得改变原文意思，并将正确答案写在短文后相应题号的横线上。

    Yesterday I was tidy ____ my room. I found an old box of my father____. He gave it to me two years ago. It was real____  interesting to discover some of my father's childhood hobbies. He once told me that he wrote for____ people all over the world, and they sent he____  letters, too. As a result, he had some wonderful stamp____. People also gave him things from different countries, such like____  a silk fan from Japan but____  a small model ship from Australia. My father even kept the ticket from his one____  football match! It made me to think____  about looking after my collections.