完形填空，先通读下面的短文，掌握其大意，然后在每小题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

　　Two close friends, Sam and Jason, met with an accident on their way to Boston City．The following morning, Jason woke up 　　1　　 and Sam was still unconscious(无意识)．Dr Berkeley was standing at his bedside looking at his health chart and medications with a 　　2　　 expression on his face．When he saw Sam awake, he beamed at him and asked, "How are you feeling today, Sam? " Sam tried to 　　3　　 a brave face and smiling back saying, "Absolutely(完全地)wonderful, doctor．I am very grateful for all 　　4　　 you have done for me．" Dr Berkeley was 　　5　　 at Sam's deed and said, "You are a very brave man, Sam, and God will make it up to you in one way or 　　6　　．” While he was moving on to the next patient, Sam called back at him almost pleading, "Promise me you won't tell Jason anything．" "You know l won't do that．Trust me．" And he walked away．"Thank you, " whispered Sam．He smiled and looked up in prayer(祷告), “I hope I live up to your 　　7　　 …Please give me the strength to be able to go through this…Amen．"

　　Months later when Jason had recovered, he 　　8　　 connecting with Sam．He felt embarrassed(尴尬的)to spend time with a disabled person like Sam．

　　Sam was lonely because he didn't have anybody else other 　　9　　 Jason to depend on．Things went from bad to worse．And one day Sam died in despair(绝望)．When Jason was called on his burial(葬礼), he found a letter waiting for him．Dr Berkeley gave it to him with a face without expression and said： "This is for you, Jason．Sam had asked me to give it to you when he was gone．"

　　In the letter he had said： "Dear Jason, I have kept my promise in the end to lend you my eyes if anything had happened to them．Now there is 　　10　　 more that I can ask from God, than the fact, that you will see the world through my eyes．You will always be my best friend…Sam．"

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