A well dressed man went into a jewelry（珠宝） shop one day. He ______ that he wished to buy a pearl (珍珠) for his wife's birthday. The ______ didn't matter, for he was rich.

After examining a number of beautiful and ______ pearls, he chose an unusual black one. It would cost ______. He paid, took the black and left.

A few days later, the man ______ and said that his wife liked the pearl ______ much that she wanted another one just like this. It ______ be exactly the same size and quality（质量）______ she wanted to have a ______ of earrings(耳环). The jeweler seemed ______. Then the man suggested that the jeweler advertise in the newspaper to offer $ 25,000 ______ such a pearl. So the jeweler did.

Many people came to him to sell their pearls but nobody ______ a pearl which was the right size and quality. Just when the jeweler had given up, a little old lady came into his ______. She took out such a ______ pearl from her pocket.

"I don't want to ______ my pearl," she said sadly, "It was given to me by my mother, who had received it from her ______ mother. But I really need the ______."

The jeweler was very ______ and quickly paid for the pearl. Then he telephoned the ______ to tell him the good news. ______, the man could never be found again.

One day, a poor boy was begging for a meal at a house. However, he lost his _________ when a lovely young girl opened the door. Instead of a meal, he asked for a drink of water. She thought he looked hungry so she brought him a large glass of warm _________. He drank it slowly, and then asked, “How much do I _________ you?”

“You don’t pay me for anything,” she replied. “Mother has taught me never to accept _______ for a kindness.” As he left that house, he felt _________ and stronger physically.

Many years later, _________, the young girl was badly ill. She was sent to a big city for _________. Dr. Howard Kelly, a famous doctor, was _________ for the consultation (会诊). When he heard the name of the town she came from, a strange light filled his eyes. Immediately, he went into her room and _________ her at once. He __________ to do his best to save her life. From that day on, he gave special __________ to her case.

After a long struggle, the battle against the illness was __________. Dr. Kelly looked at her final bill and then __________ something on the side. The bill was sent to her. She was __________ to open it because she was sure that it would take the rest of her life to pay it off. Finally she looked, and the __________ on it caught her attention. She read those words, “Paid in full with a glass of milk. (Signed) Dr. Howard Kelly.”

It was an extremely hot summer day. A thunderstorm had passed and now the clouds were cleared and the sun returned. Steam was coming off the ____ sidewalk as I parked my car. I ____ into the local store to buy my son a shirt. The air conditioner there was welcome ____ from the heat outside. 

Having made my ____,I walked back into the heat. I got into my car but had to wait to ____ because all the cars were lining up at the red light. I looked out of my car window and saw something on the pavement. A single butterfly was ____ fluttering (拍打) its wings but couldn’t get off the ground. Besides, it was right in front of a truck’s tire. Without a second thought, I got out of my car, ____ my hand so that the truck driver wouldn’t move ____,and then bent down to look at the butterfly. One of its legs was ____ in what looked like spilt soda. I reached down and ____ the butterfly in my hands ____. I lifted its leg and it was ____. I opened my hands and up it flew towards the shining sun. My own eyes shined brighter and my own heart was ____ as I watched it. 

Lots of people might wonder why I would step out into traffic like that to ____ a single butterfly. All I can say is that my heart was ____ me at that moment. And when I had done it, I felt more like my true self than I had all day.