____for the doctor's careful treatment, he____till last year.

1. A.
   If it is not; can't live
2. B.
   Were it not; couldn't live
3. C.
   Had it not been; couldn't have lived
4. D.
   If they were not ; couldn't live

____for the doctor's careful treatment, he____till last year.

A. If it is not; can't live    B. Were it not; couldn't live

C. Had it not been; couldn't have lived    D. If they were not ; couldn't live

61. ____for the doctor's careful treatment, he____till last year.

A. If it is not; can't live B. Were it not; couldn't live

C. Had it not been; couldn't have lived

D. If they were not ; couldn't live

________ for the doctor's careful treatment, he_______ till last year.

[　　]

A．If it is not, can't live

B．Were it not, couldn't live

C．Had it not been, couldn't have lived

D．If they were not, couldn't live