to hospital in time the patient infected with flu was saved at last.A. Taking　　B. Having

问题补充：

to hospital in time, the patient infected with flu was saved at last.

A. Taking

B. Having taken

C. To be taken

D. Having been taken

答案：

A. Taking

B. Having taken

C. To be taken

(答案→)D. Having been taken

解析：考查分词做状语。本题句子的主语the patient与动词take构成被动关系，且该动作是在谓语动作之前就发生的发生的，可以使用Taken也可以使用having been taken。句意：被及时送到了医院，那个感染了流感的病人的生命最后被挽救了。故D正确。