The baby health was ruined after taking the medicine was only one year old.A. whichB. wh

问题补充：

The baby, health was ruined after taking the medicine, was only one year old.

A. which

B. whose

C. who

D. whom

答案：

A. which

(答案→)B. whose

C. who

D. whom

解析：句意：在吃药后，健康被毁了的孩子只有1岁大。这里使用的是定语从句，先行词是the baby，定语从句中缺少定语，一批能够whose引导定语从句，所以选B。