阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Doing community service work, I spent three or four hours(1)_________ (hand)out warm dinner to the homeless out in the streets. After that I went to a homeless shelter not far (2)________the Bay Bridge.
I was in high school and at the time my sister was too young (3)_________ participate. She wanted to help, so she made four or five dozen chocolate chip cookies for me to bring and hand out to people.
When (4)_________(get) to the homeless shelter, I passed out the remaining meals. I had the containers with my sister’s cookies in them and began to come around, offering them to anyone near me.
I walked towards an old gentleman and said, “Sir, would you like a cookie?” He (5)_______(turn) around, looked at me and said, “What did you say? Did you call me sir?” I told him I had, and he said, “No one has ever called me sir.” He was (6).________(complete) moved.
It struck me.Everyone deserved respect. It made me think that just because he was homeless, no one offered him the honour. It broke my heart, and I couldn’t help (7)_________(cry) . I just didn’t underst- and why no one ever called him sir? Every person deserves to be (8)_______ (treat) with dignity. Years later, I still carry that memory and the lessons (9)_______ it taught me. Sometimes, a little thing can make a (10)_______(different) in someone’s life.
