Interchange the negative sentence into affirmative sentence. No man could have done better .
AHe did as well as any man could have done .
BNever man could have done better .
CNone could have done better .
DNone of these .
AHe did as well as any man could have done .
BNever man could have done better .
CNone could have done better .
DNone of these .
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Convert simple sentence into complex sentence by using adverbial clause. He did not stop working before his success .