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All possible means to save the wounded soldier. A. has been tried B. have been t

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All possible means to save the wounded soldier. A. has been tried B. have been t

All possible means ________ to save the wounded soldier.

A. has been tried

B. have been tried

C. is to be tried

D. are trying

 

试题答案

答案：B

解析：
主语是复数。

 

提示：

标签：thesavesoldierwoundedpossible

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