When the soldiers marched into the valley,they suddenly found themselves( )by enemy forces.答案：A、surrounding B、surrounded C、be surrounded D、having surrounded请问正确答案是哪个?并加以解释,谢谢!请问xszsn为什么答案C不对呢？
问题描述：
When the soldiers marched into the valley,they suddenly found themselves( )by enemy forces.
答案：A、surrounding B、surrounded C、be surrounded D、having surrounded
请问正确答案是哪个?并加以解释,谢谢!
请问xszsn为什么答案C不对呢？
答
B
战士被包围,是被动,用done的形式
find oneself doing/done 固定搭配
若选C,后面分句中有found,be两个动词,违背了一个句子只有一个谓语的原则
答
find oneself doing/done 由于是被动因此用B项