It was a hot Chicago day in August when Mike’s fire-fighting crew ( 消防 队 ) tried to manage a fire in a building. “It was hopeless ( 没有希望的 ) to put out the fire 1 of the strong wind,” says Mike. By the time the 24-year-old fireman ( 消防员 ) arrived most of the people had 2 left the b lazing ( 火焰 ) building. Suddenly, a woman came running up to them shouting, “My baby, where is my Kris?” The woman explained that she had left her 7-year-old so n alone while she went shopping. Mike made his way back up to the building. He could see a little boy 3 on the floor. “I didn’t even have time to think if he was alive ( 活着的 ) or dead, I just caught him and _ 4 _ out.” Mike heard the floor the sound of the floor above crumbling( 破碎 )just as they left the building. The people broke into 5 as they saw them. When Kris coughed from the smoke, Mike knew he was still alive. Mike was a hero, but little did he know how his decision ( 决定 ) would 6 his own life 20 years later. Two weeks after the building fire, Mike had two visitors appear at the station — Kris and his mother. They had come to 7 him and they would repay ( 偿还 ) him a life. Since then Kris visited Mike at least once every week after school. A few months later, they really became friends. As the years went on, Mike married ( 结婚 ) , started his own family. Kris went to college, but the two kept in touch, writing letters and talking on the telephone. At age 37, there was something wrong with Mike’s kidney( 肾脏 ). By age 44, Mike was badly ill and he needed a donor( 捐赠 ) kidney. When Kris called only to 8 that Mike was on his deathbed ( 临终之时 ) , he knew he could 9 r epay him. He said to him, “I’ve got two kidneys, and you can have 10 .” The operation ( 手术 ) w as successful. “Mike says we’re even now,” says Kris. “But the truth ( 真相 ) is he was there all my life to help me make decisions and give me support ( 支持 ) .” Mike and Kris both went on to live happy, healthy lives in Chicago.