题目内容
【题目】Every possible means ______ to save the woundedsoldier up to now.
A. was tried
B. were tried
C. have been tried
D. has been tried
【答案】D
【解析】句意:为了挽救伤员,到现在为止每一个可能的办法都已经试过了。由时间状语up to now可知应用现在完成时。另外,主语means与try之间为被动关系,故用被动语态。means为单复数同形的单词,由其前的every决定了此处作单数名词用。故选D项。
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