for the doctor's careful treatment hetill last year. A. If it is not; can't live B. Were

问题补充：

for the doctors careful treatment, hetill last year.

A. If it is not; can live

B. Were it not; couldn live

C. Had it not been; couldn have lived

D. If they were not ; couldn live

答案：

A. If it is not; can live

B. Were it not; couldn live

(答案→)C. Had it not been; couldn have lived

D. If they were not ; couldn live

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