此題要求改正所給短文中的錯誤。對標(biāo)有題號的每一行作出判斷：如無錯誤，在該行右邊橫線
上畫一個勾（√）;如有錯誤（每行只有一個錯誤），則按下列情況改正：
該行多一個詞：把多余的詞用斜線（\\)劃掉，在該行右邊橫線上寫出該詞，并也用斜線劃掉。
該行缺一個詞：在缺詞處加一個漏詞符號（∧)，在該行右邊橫線上寫出該加的詞。
該行錯一個詞：在錯詞的下面畫一橫線，在該行右邊橫線上寫出改正后的詞。
注意：原行沒有錯的請不要改。

A poor boy , named Howard Kelly , was trying to pay his way through school by selling goods door to door . He was hungry ,  36  he decided to beg something to eat .

When a young woman opened the door , instead of a  37  he asked for a drink of water . Thinking he looked  38  she brought him a large glass of milk . He drank it and then asked , “How much do I  39  you ? ”

“No , you don’t owe me anything , ” she replied . “Mother has taught me  40  to accept pay for a kindness . ” Leaving that house , he not only felt stronger  41  , but it also increased his faith in God and the human race . He was about to  42  before this point .

 43  later the young woman became seriously ill . The local doctors couldn’t cure her illness . They sent her to the big city , where specialists can be  44  to study her disease . Dr . Howard Kelly , now  45  , came for the consultation (會診) . When he heard the name of the town where she came from , a strange light filled his eyes .  46  , he went into her room .

47  in his doctor’s gown (罩衣) he went in to see her . He  48  her at once . He went back to the  49  and determined to do his best to save her life . From that day on , he gave special attention to her case .

Finally , the battle was won . Dr . Kelly asked a nurse to  50  the bill to her room . She was afraid to open it  51  she knew that it would  52  the rest of her life to pay it off . Finally she looked and read these words on the side of the bill :

“Paid in full with a glass of  53  . ” (Signed ) Dr . Howard Kelly .

Tears of  54  flooded her eyes as she  55  silently : “Thank you , God . Your love has spread through human hearts and hands. ”

After many years’ hard working, his parents managed to ________ the debts for his education at university.