By the time he was dying he made a testament that he wouldhis kidney(肾) to those who were

问题补充：

By the time he was dying, he made a testament that he wouldhis kidney(肾) to those who were in need of it.

A. contribute

B. donate

C. provide

D. introduce

答案：

A. contribute

(答案→)B. donate

C. provide

D. introduce

解析：donate 此处的意思为“捐献(器官)”。contribute指捐献金钱或财物，不能用于捐献身体器官；donate除了有与contribute相同的意思外，还可以用于捐献器官或献血。provide供给；供应；introdue介绍；引进；提出。