As we know, penicillin became the greatest drug of the 20th century, millions of lives.A.

发布时间：2020-08-16 21:00:11

As we know, penicillin became the greatest drug of the 20th century,      millions of lives.
A. to save
B. saving
C. saved
D. Save

网友回答

A. to save
(答案→)B. saving
C. saved
D. Save
解析：考查非谓语动词。根据句子结构可知，      millions of lives作伴随状语，save和它的逻辑主语penicililin之间是主动关系，故采用saving形式，to save表目的 ，saved表被动 save用于祈使句
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