we all survived ____A during the war B the war

survive [səˈvaiv] vi.幸存，继续存在 vt.幸免于；挺过来

题目是指“在战争中幸存下来”即“幸免于战争”
而不是“幸免于战争期间”

还有一种题，常考：
改错：Few people in the town survive from the earthquake.
from 应去掉

sb be survived (from)....

survive 是动词，动词后加宾语。A选项是介词短语，不能成为宾语。即选B。