The mad man was put in the soft-padded cell lest he ___ himself.

问题描述:

The mad man was put in the soft-padded cell lest he ___ himself.
A.injure
B.had injure
C.injured
D.would injure
求详细分析.不要就丢个答案.我知道答案.

lest是避免,以免的意思,应该是may injure,这里 may省略
这题考的是lest的用法,虚拟语气一般和should或原形动词连用