【题目】--- Why did your brother look so down?
His ________ to become a pilot was held back by his poor eyesight.
A. promotion B. destination.
C. instruction D. ambition
在线课程【答案】D
【解析】考查名词。A. promotion晋升；B. destination目的地；. C. instruction 指导； D. ambition雄心。上句：你弟弟为什么看起来这么沮丧？下句：他想当飞行员的野心被他可怜的视力所抑制。根据句意可知答案为ambition。