that must be ___ ___ watch.It isn't mine.那一定是其他某个人的手表,那不是我的.填空并说出理由

问题描述:

that must be ___ ___ watch.It isn't mine.那一定是其他某个人的手表,那不是我的.填空并说出理由

that must be someone else's watch.It isn't mine.
其他人的.
someone else是其他人.
加's就是其他人的.