题目内容：

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

One day, a poor boy who was trying to pay his tuition for school by selling goods door to door found that he only had one dollar __1.___ (leave). He was hungry so he decided to beg for a meal at the next house.

However, he suddenly felt very __2._ (shame) when a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked hungry so she brought him __3.__ large glass of milk. He drank it hurriedly, and then asked, “How much do I owe you?”

“You don’t owe me anything,” she replied, ___4.__ (smile). “Mother ___5.____ (teach) me never to accept pay for a kindness since my childhood, as it is pleasant enough to ___6.___ (simple) help someone!” He said, “Then I thank you from the bottom of my heart.” ___7.____ these words, he left that house, not only feeling stronger physically, but also __8.___ (have) more faith in the human race. He was about to give up and quit before this point. It was this glass of milk __9.___ filled him with warmth to go on. Years later, he made __10.___ as a famous physician, but he never forgot that young woman and her kindness.