完形填空

　　On a cold November afternoon, my mother and I were walking home from a pizza store．We were dressed warmly and took the rented video we wanted to watch, I was feeling a little 　　1　　 as I was carrying our shopping, bags of snacks and the 　　2　�。�

　　They were so heavy that I decided to 　　3　　 some things．So I started to walk towards the garbage can 　　4　　 I noticed a poor man walking his bike out of the restaurant in front of us．He 　　5　　 a paper bag with his dirty hand．He headed over to another nearby garbage can and started 　　6　　 it．

　　I suddenly felt very 　　7　　 because I was about to do away with a new drink just 　　8　　 it was heavy．I knew this man would take all he could 　　9　　, so I walked up to him and 　　10　　 the drink and some snacks to him．The man looked up 　　11　　 and took what I gave him．A huge smile spread across his face and this caused me to feel great satisfaction．I felt like I couldn't be happier with myself, but then he said, “This is my son's lucky day!”

　　With that, he 　　12　　 me happily and started off on his bike．I even heard him whistling(哼唱)a song as he rode away．I got a warm feeling inside and I knew I had done something good, for the man and his family．I now understand what is 　　13　　 by the saying “Giving is getting”．

　　Since then, every time I have the 　　14　　 to do something nice, the image of the man's happiness caused by my small gift appears in my mind．This is the 　　15　　 of charity(慈善)．