根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

       When I was ten, my mother worked all day so I had to babysit my   1  brother. At that time my little

brother was about four years old and he missed mum all the time.

       One day, after we had dinner, he started crying for mum. So I dressed him, put on his   2  , carried

him on my back and walked   3  . Soon he fell asleep. About 20 minutes later, I found one of his shoes   4  while sleeping. I took him off my back and put him down. I knew we needed to find that shoe because

our mum   5  buy new shoes. We had to go back to find   6  . So I told my brother to wait right there. A

man heard it and   7   me just before I walked away. He asked me, " You are leaving your brother to find

the shoe? What would you   8  if he is not here when you come back?" I did not know how to answer that question. He said again, " It's OK if you can't find the shoe,  9  it is not OK to lose your brother." Then he sent us to mum's workplace by taxi. I do not even remember what the man's face looked like, but he

taught me a lesson-People are   10  important than things.