The doctor did all he could so that he _____ save the soldier’s life.A.might B.must C.had toThe doctor did all he could so that he _____ save the soldier’s life.A.might\x05 B.must C.had to\x05D.was able to

The doctor did all he could so that he _____ save the soldier’s life.A.might B.must C.had toThe doctor did all he could so that he _____ save the soldier’s life.A.might\x05 B.must C.had to\x05D.was able to
The doctor did all he could so that he _____ save the soldier’s life.A.might B.must C.had to
The doctor did all he could so that he _____ save the soldier’s life.
A.might\x05 B.must C.had to\x05D.was able to

The doctor did all he could so that he _____ save the soldier’s life.A.might B.must C.had toThe doctor did all he could so that he _____ save the soldier’s life.A.might\x05 B.must C.had to\x05D.was able to
选择A . 在此问题中：so that 引导目的状语,可以与in order that互用,意思是“为了,以便”,从句谓语中常用情态动词may / might,can /could,should,would等；主从句间连接紧凑,没有逗号相隔.
本句翻译：为了挽救这个战士的生命,医生尽他所能,做了能做的一切.

我觉得答案是D
医生做了一切能够做的事情，因此他得以拯救那名士兵的生命。
so that有一定因果关系的感觉 ……以至于……
must/had to都是必须 这里不对
might表示可能，was able to 表示能力上能够，这里前面说了医生尽力了，所以后面应该是表示能够...

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我觉得答案是D
医生做了一切能够做的事情，因此他得以拯救那名士兵的生命。
so that有一定因果关系的感觉 ……以至于……
must/had to都是必须 这里不对
might表示可能，was able to 表示能力上能够，这里前面说了医生尽力了，所以后面应该是表示能够

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was able to

A