____a satisfactory operation,the doctor believed the patient
____a satisfactory operation,the doctor believed the patient would recover from his illness very soon. A.Having been given B.Having given C.Giving D.Being given
选B 这里是有关非谓语动词的用法.主语是“ the doctor ”,所以与give a satisfactory operation是主动关系,所以排除A和D,再者,这里是在the doctor believed the patient would recover from his illness very soon这个动作之前发生,所以用完成时.综合一下,就选B!