They many difficulties during World War II, but they never lost confidence about life.
A. went over
B. went through
C. went up
D. went on
网友回答
A. went over
(答案→)B. went through
C. went up
D. went on
解析：二战期间他们经历了许多困难，但对生活从未失去信心。短语动词辨识。go through: 经历。go over: 复习；查看、核对。go up: 上升、升起。go on: 继续、持续。故B项正确。