Dr. Bethune worked hard as if he . A. never had felt tired B. had never felt tired C. never fel——青夏教育精英家教网—

摘要： Dr. Bethune worked hard as if he . A. never had felt tired B. had never felt tired C. never felt tired D. was tired never

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Dr. Bethune worked hard as if he ___.
A. never had felt tired B. had never felt tired

C. never felt tired 　　 D. was tired never

Dr. Bethune worked hard as if he ___.

A. never had felt tired B. had never felt tired

C. never felt tired D. was tired never

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